Quick SNITCH

A quantitative guide to the degree of difficulty of the Times Quick Cryptic Crossword

Solver Types and Neutrino Detection

Why solver classification matters

The SNITCH is calculated from Reference Solvers: club solvers whose results give a reliable measure of crossword difficulty. Solvers are classified automatically so that genuine solving behaviour contributes to the calculation, while other solving styles remain visible without distorting the statistics.

Non-reference solvers can still appear in tables and puzzle pages. Their results are simply excluded from the daily SNITCH calculation unless they meet the Reference Solver criteria.

What is a Neutrino?

Neutrino - A person who solves the puzzle elsewhere and then types the answers into the Crossword Club as rapidly as possible. This can produce leaderboard times that do not represent normal solving. (Shortened from the Times for the Times glossary definition.)

Genuine solvers usually take longer on difficult puzzles than on easy ones. Neutrinos tend to record similarly fast times regardless of puzzle difficulty because they are typing answers they already know. This difference is the central idea behind the detector.

How the detector works

The scatter plot below compares each solver's average solving time with their alignment to SNITCH difficulty rankings. Each point is one solver. The x-axis shows average solving time, and the y-axis shows how closely that solver's own ordering of puzzle difficulty agrees with the community-based SNITCH ordering.

Genuine solvers tend to cluster higher on the chart because they usually find the same puzzles easy or difficult as the wider solving community. Classic Neutrinos cluster toward the lower-left because their very fast times show little relationship to puzzle difficulty. Hover over a point to see the solver name.

Classification rules

The classifier uses average solving time and SNITCH alignment together. Very fast solvers need strong alignment before being accepted as Reference Solvers. Low alignment indicates Neutrino behaviour, especially when average solving times are unusually short.

Current settings for this SNITCH:

  • Fast-solver boundary: under 4.3 minutes average solving time.
  • Fast solvers need alignment of at least 0.5 to become Reference Solvers.
  • Solvers below 0.25 alignment are classified as Neutrinos unless another configured rule applies.
  • Other Reference Solvers need alignment of at least 0.4 and an average below 21.7 minutes.

Borderline cases become Tracked rather than Reference. Slower solvers with poor alignment are generally unsuitable as Reference Solvers even when they are not classic Neutrinos.

Solver categories

Category Used in SNITCH? Description
Reference Yes Reliable solvers whose results contribute to the SNITCH calculation.
Tracked No Solvers whose results are displayed but not used in calculating the SNITCH.
Neutrino No Solvers whose recorded times are inconsistent with normal solving behaviour.
Blog Solver No Solving times reported via the Times for the Times blog.

Current solver classifications

The chart below shows the same style of plot using each solver's current classification. These classifications are refreshed when the solver update is run.

Blog Solvers

Times reported on the Times for the Times blog can be tracked where the blogger has opted in. Use the "Blog Solver" button on crossword solving-time pages for full details.

  • Preferred formats are "mm:ss" or "x minutes" in the comment title or at the start of the comment.
  • Report errors as "n errors" near the time, for example "38:30, 0 errors".
  • If only a time is given, the result is treated as error-free unless the comment mentions DNF, pink squares, or similar.
  • Only the first main comment for each blogger is used; replies and later comments are ignored.

SNITCH alignment factor

The SNITCH alignment score measures whether a solver tends to find the same crosswords easy and difficult as the rest of the community. It is calculated using Spearman rank correlation between the solver's own ranking of puzzle difficulty and the SNITCH ranking for the same puzzles.

A score of 1 means almost perfect agreement. A score near 0 means there is no consistent relationship between the order of the solver's results and the SNITCH difficulty order.

For example, Verlaine has results as shown in the chart below. Easier puzzles according to the SNITCH are on the left of the x-axis, harder ones on the right. The individual results are noisy, but the easier SNITCH puzzles tend to be among Verlaine's easier results and the harder puzzles tend to be among his harder results. An alignment of around 0.7 is very typical of a real reference solver like Verlaine.

In contrast, the solving times for the solver below don't depend on whether the SNITCH sees the crossword as easy or hard. Because the solver's own ranking of puzzle difficulty does not follow the SNITCH ranking, the Spearman correlation is low.

Solving times for club members

The table below shows crossword club solvers who have submitted more than 20 solutions in the six months to the end of September 2026. Only Monday-to-Friday, error-free crosswords are considered. And only solvers with an average solving time of less than 60 minutes are included. The non-Neutrino solvers are ranked by that average solving time. The table also indicates the solver's status, including whether they are Reference solvers for calculation of the daily SNITCH.

Rank Solver Status - Sep 2023 Current Status Average Time SNITCH Correlation
Wee Davie new_solver neutrino 01:33 0.25
1 cmjhutton reference reference 02:08 0.69
2 Paul Gilbert reference reference 02:08 0.64
3 lili tracked reference 02:11 0.7
Margaut tracked neutrino 02:23 0.07
auchiedollie tracked neutrino 02:27 0.6
4 NeilT tracked reference 02:34 0.74
5 Jason reference reference 02:35 0.64
6 Magoo tracked reference 02:37 0.67
7 verlaine reference reference 02:38 0.7
8 mistigris reference reference 02:42 0.68
9 aphis99 reference reference 02:44 0.66
10 hilarym reference reference 02:49 0.68
11 HoneyBadger new_solver reference 02:54 0.61
12 Amoeba89 new_solver reference 03:06 0.62
michaelbell53 reference neutrino 03:07 0.2
Almond449 new_solver neutrino 03:08 0.15
PeterG47 new_solver neutrino 03:10 0.21
13 Askival new_solver reference 03:14 0.59
14 Wizard of Aus new_solver reference 03:14 0.6
15 Alexis Johansen new_solver reference 03:15 0.51
16 Ciolf new_solver reference 03:17 0.69
17 fshephe reference tracked 03:23 0.7
18 philjordan1147 reference reference 03:23 0.58
19 Flimmy flammy reference reference 03:25 0.58
20 Aybee new_solver reference 03:25 0.55
C M Gilles tracked neutrino 03:25 0.73
susan new_solver neutrino 03:28 -0.01
21 Deane Short new_solver reference 03:28 0.65
22 markdobell reference reference 03:30 0.62
23 Heyesey reference reference 03:36 0.6
24 Sheapey tracked reference 03:37 0.66
25 richard reference reference 03:40 0.54
26 SimonAnthony tracked reference 03:47 0.69
27 glheard reference reference 03:51 0.55
28 Kinghedger reference reference 03:58 0.67
29 Topical Tim reference reference 04:03 0.58
30 EricK new_solver reference 04:03 0.63
31 clarkeybaby new_solver reference 04:06 0.67
32 pauline-ff new_solver reference 04:06 0.69
33 Umpire reference reference 04:15 0.65
34 MikeOsborneMason new_solver reference 04:16 0.7
Crypton new_solver neutrino 04:18 0.46
35 Liari reference reference 04:22 0.5
36 cdb_100 new_solver reference 04:28 0.74
37 MK76 reference reference 04:30 0.55
Freemers1968 new_solver neutrino 04:31 0.7
38 dr.shred new_solver reference 04:31 0.6
39 tilbee reference reference 04:32 0.76
40 alexh reference reference 04:33 0.61
41 daulbs reference reference 04:34 0.61
42 babka new_solver reference 04:37 0.71
43 March reference reference 04:37 0.66
44 canismiser reference reference 04:38 0.46
istorey new_solver neutrino 04:38 0.07
45 lickert reference reference 04:38 0.68
46 Vannyx new_solver reference 04:39 0.63
47 andrewlake reference reference 04:41 0.75
48 tiggis reference reference 04:42 0.27
49 toots new_solver reference 04:43 0.74
50 wwalker50 reference reference 04:44 0.79
51 Jon Delfin tracked reference 04:44 0.57
52 Anomalospiza new_solver reference 04:44 0.62
53 rrricharrrd new_solver reference 04:45 0.7
Kate and John new_solver neutrino 04:45 0.22
54 Morphosis new_solver reference 04:48 0.51
55 CentralLine new_solver reference 04:48 0.57
56 JayEm new_solver reference 04:49 0.58
57 chrismarch tracked reference 04:49 0.63
58 chindit reference reference 04:49 0.64
59 Riche reference reference 04:49 0.56
alisonm74 new_solver neutrino 04:50 0.58
60 neilr reference reference 04:51 0.69
61 Tom Stubbs reference reference 04:51 0.56
62 Paul Bacon tracked reference 04:51 0.39
John Walsh tracked neutrino 04:52 0.53
63 jflo88 new_solver reference 04:53 0.56
lucyg43484 reference neutrino 04:54 0.69
64 chriswords tracked reference 04:56 0.72
65 LouWeed reference reference 04:58 0.72
66 d.middleton reference reference 04:58 0.61
67 benbush new_solver reference 04:58 0.62
68 Johninterred new_solver blog_solver 04:59 0.68
69 The Dabbler tracked reference 04:59 0.63
70 Aly Duncan reference reference 05:00 0.68
71 andy reference reference 05:01 0.64
72 fishernick79 tracked reference 05:05 0.69
73 trux reference reference 05:05 0.63
74 Zander reference reference 05:05 0.75
75 AndyKnott321 new_solver reference 05:12 0.73
76 Rabbitoh reference reference 05:13 0.57
77 Squallaby reference reference 05:14 0.58
78 inca1 new_solver reference 05:16 0.61
79 Streaky Bacon new_solver reference 05:18 0.64
80 Onelug new_solver reference 05:19 0.66
81 cmcnsmith reference reference 05:22 0.4
82 chriswestontour new_solver reference 05:22 0.62
83 Paul Hammond reference reference 05:24 0.68
84 lyndaw new_solver reference 05:25 0.67
85 ChuckB reference reference 05:25 0.64
86 Ed freshpot reference reference 05:26 0.67
87 SBQuick new_solver reference 05:27 0.74
GeorgeTz reference neutrino 05:29 0.43
88 MrChumley reference reference 05:33 0.57
89 Encota new_solver reference 05:34 0.64
90 KarenR new_solver reference 05:34 0.61
91 7dPenguin reference reference 05:37 0.71
92 Penfold_61 reference reference 05:37 0.58
93 Tibthorpe reference reference 05:37 0.64
94 julian_w reference reference 05:37 0.76
95 KET reference reference 05:42 0.7
96 nina s reference reference 05:45 0.74
97 footballblue reference reference 05:45 0.65
98 Looch reference reference 05:46 0.77
99 Finzi reference reference 05:46 0.55
100 thewanderingeditor new_solver reference 05:47 0.67
101 esmeralda reference reference 05:47 0.67
102 mjsaunders9 new_solver reference 05:50 0.63
103 Roscoe reference reference 05:52 0.57
104 wolfcloud new_solver reference 05:52 0.58
105 andrewfeist96 new_solver tracked 05:53 0.65
106 scrabbler reference reference 05:54 0.64
107 rob.rolfe42 new_solver reference 05:56 0.77
108 Crossiant reference reference 05:59 0.85
109 Mike C new_solver reference 05:59 0.64
110 Tudds reference reference 06:00 0.74
111 Aldus new_solver reference 06:03 0.48
112 Jamie Fox new_solver reference 06:09 0.62
113 Dan Wroe new_solver reference 06:10 0.74
114 hopkinb reference reference 06:10 0.78
115 JPTC new_solver reference 06:10 0.61
116 james150374 new_solver reference 06:13 0.73
117 Dzhigit reference reference 06:17 0.64
118 paul.whitehouse69 reference reference 06:17 0.8
119 PGooden reference reference 06:23 0.72
120 tom.healey new_solver reference 06:23 0.49
121 metagloria new_solver reference 06:24 0.52
122 Curarist tracked reference 06:26 0.7
123 Rosron reference reference 06:26 0.58
124 Cookincats tracked reference 06:27 0.8
125 Kalakuta72 reference reference 06:28 0.64
126 Barrels new_solver reference 06:31 0.64
127 hazyfantazee new_solver reference 06:33 0.85
128 LiamD new_solver reference 06:34 0.64
129 Maitresse new_solver reference 06:34 0.75
130 jimwetzler reference reference 06:34 0.6
131 plusjeremy new_solver reference 06:37 0.75
132 jon reference reference 06:42 0.81
133 as584 new_solver reference 06:45 0.78
134 The Caffeine Kid new_solver reference 06:49 0.64
135 intentional rounding new_solver reference 06:49 0.69
136 GMcD reference reference 06:51 0.65
137 James P reference reference 06:52 0.72
138 Shabbo reference reference 06:53 0.72
139 Dvynys reference reference 06:55 0.78
140 earlylight reference reference 06:55 0.77
141 endafk reference reference 06:56 0.62
142 Snorter new_solver reference 07:01 0.6
143 janesa new_solver reference 07:02 0.56
144 Neb new_solver reference 07:03 0.5
145 cerid new_solver reference 07:03 0.67
146 cognominative new_solver reference 07:03 0.58
KenD51 reference neutrino 07:06 0.71
147 tds tracked reference 07:06 0.73
148 thebigshow new_solver reference 07:07 0.66
149 smalley552 tracked reference 07:09 0.51
150 Kevin Gregg reference reference 07:09 0.56
151 membership new_solver tracked 07:10 0.33
152 Monkos tracked reference 07:11 0.95
153 mjwiseman tracked reference 07:13 0.72
154 mw7000 reference reference 07:13 0.52
155 Alfaracerob new_solver reference 07:14 0.59
156 raincloud reference reference 07:14 0.58
157 uvofiz reference reference 07:16 0.7
158 robinh reference reference 07:18 0.66
159 Templar Redux reference reference 07:19 0.65
160 gnome123 new_solver reference 07:20 0.47
161 Gussie reference reference 07:20 0.83
162 Doyler tracked reference 07:23 0.65
163 Puzzleplease reference reference 07:23 0.74
164 plett11 reference reference 07:24 0.71
165 DianeRS reference reference 07:24 0.7
166 Solving slo mo new_solver reference 07:26 0.53
167 Adrian Cobb new_solver reference 07:27 0.6
168 Desdeeloeste new_solver reference 07:27 0.74
169 docg tracked reference 07:28 0.33
170 Rosey6 new_solver reference 07:28 0.87
171 f4rch new_solver reference 07:29 0.58
172 brian.richards1 new_solver reference 07:31 0.75
173 Corymbia reference reference 07:31 0.72
174 mich_punk new_solver reference 07:32 0.67
175 Srb1 new_solver reference 07:33 0.59
176 nigel reference reference 07:33 0.62
177 Rozz tracked reference 07:34 0.88
178 Mike Harper reference reference 07:34 0.68
179 TomHerbert reference reference 07:36 0.67
180 1234 reference reference 07:37 0.67
181 DamienKnapma new_solver reference 07:38 0.58
182 Sheen reference reference 07:41 0.86
183 Married Admirer new_solver reference 07:43 0.86
184 JoeyC tracked reference 07:43 0.71
185 Falconer D new_solver reference 07:44 0.69
186 ilan reference reference 07:47 0.67
187 banni-wae new_solver reference 07:47 0.64
188 Mudge new_solver reference 07:48 0.51
189 phatman new_solver reference 07:49 0.7
190 feline new_solver reference 07:50 0.51
191 hemantyd new_solver reference 07:56 0.5
puzzled1 tracked neutrino 07:59 0.54
192 ChrisBrea reference reference 08:00 0.8
193 RPY tracked reference 08:03 0.53
194 Troothful tracked reference 08:05 0.52
195 Dr_Bob tracked reference 08:05 0.74
196 crucihacker new_solver reference 08:07 0.61
197 robertL new_solver reference 08:09 0.71
198 Manuel1 tracked reference 08:11 0.66
199 mattindoha reference reference 08:11 0.65
200 ulaca reference reference 08:17 0.65
201 jemcd33 tracked reference 08:19 0.72
Mike Mansbridge reference neutrino 08:20 0.26
202 johndun reference reference 08:20 0.68
203 m5harp reference reference 08:21 0.63
204 vefatica tracked reference 08:22 0.43
205 anchisiades new_solver reference 08:23 0.72
206 Jeeves tracked reference 08:25 0.81
john.brassey tracked neutrino 08:26 0.56
207 John Arnold reference reference 08:32 0.64
208 Cuppa378 tracked reference 08:33 0.69
209 E Bradford tracked reference 08:34 0.54
210 jaraab reference reference 08:35 0.66
211 Peloton new_solver reference 08:36 0.54
212 Joseph T new_solver reference 08:36 0.57
213 MichelinPoitiers new_solver reference 08:40 0.6
214 cestmoi new_solver reference 08:42 0.81
215 Eyejaybeee tracked reference 08:45 0.41
216 kath tracked reference 08:46 0.58
217 CrystalPip tracked reference 08:47 0.69
218 annikins new_solver reference 08:48 0.62
219 jarenstein new_solver reference 08:49 0.66
220 goblin reference reference 08:50 0.7
221 nigelmzzz tracked reference 08:50 0.61
222 alex.scordellis tracked reference 08:50 0.63
223 vinyl12345 reference reference 08:51 0.44
224 starstruck new_solver reference 08:54 0.64
225 NoBadWeather new_solver reference 08:54 0.68
226 timbo reference reference 08:55 0.77
227 barracuda reference reference 08:56 0.7
228 Chimblet Lyle new_solver reference 08:59 0.63
229 Msimmo new_solver tracked 09:01 0.56
230 Edprof reference reference 09:02 0.64
231 Deezzaa reference reference 09:02 0.62
232 sicoll new_solver reference 09:08 0.48
233 Solfynn new_solver reference 09:11 0.63
234 Mkgnao tracked reference 09:15 0.77
Hedlights new_solver neutrino 09:16 0.23
235 horners1974 new_solver reference 09:18 0.59
236 Poff new_solver reference 09:20 0.9
237 crosswordian reference reference 09:23 0.57
238 Stozzer John new_solver reference 09:32 0.64
239 gsriordan52 reference reference 09:34 0.66
240 Word Psmith new_solver reference 09:37 0.69
241 johnusa new_solver reference 09:40 0.6
242 The Real Steve Snackman new_solver reference 09:43 0.63
martinr486 new_solver neutrino 09:53 0.55
243 Meles Meles new_solver reference 09:55 0.78
244 Muckypuppy new_solver reference 10:04 0.62
245 OldSolver tracked reference 10:07 0.51
246 Gnasherlicious new_solver reference 10:10 0.75
247 Captain Burnaby new_solver reference 10:12 0.49
248 eadgils new_solver reference 10:18 0.46
249 griftdrift new_solver reference 10:22 0.73
250 Laputan tracked reference 10:29 0.9
251 Birdingbob tracked reference 10:29 0.49
252 simjt tracked reference 10:33 0.62
253 aggyp new_solver tracked 10:34 0.35
254 JeffHobbs tracked tracked 10:39 0.7
255 Mark from Ipswich new_solver reference 10:41 0.62
256 Struwa tracked reference 10:44 0.77
TommyBald new_solver neutrino 10:45 0.48
iholloway tracked neutrino 10:47 0.48
257 Boostage new_solver tracked 10:47 0.37
258 paul.graville new_solver reference 10:49 0.76
259 Gordon B new_solver reference 10:53 0.59
260 jackk.larg tracked reference 10:54 0.76
261 ezoredfox tracked reference 10:54 0.75
262 Cedric Statherby new_solver blog_solver 10:55 0.58
263 symbenall2 new_solver reference 10:57 0.6
264 chabuduo tracked reference 10:57 0.63
265 InsaneEmu new_solver tracked 11:00 0.37
266 lecreuslet new_solver reference 11:07 0.7
267 SMSEsq new_solver tracked 11:10 0.38
268 Pendrov tracked tracked 11:12 0.47
Quelaag new_solver neutrino 11:13 0.19
269 rlowin2 new_solver reference 11:13 0.55
270 Dr. Memory tracked reference 11:25 0.54
271 Sonofjim tracked reference 11:26 0.67
272 cpn-xonmkhdty new_solver reference 11:40 0.61
273 rdb8 new_solver reference 11:47 0.55
274 danielbluebisson new_solver reference 11:48 0.55
275 maisiemae reference reference 11:50 0.66
276 TonyN6 reference reference 11:54 0.7
277 WordPlodder tracked reference 11:57 0.67
278 Jawar new_solver reference 12:00 0.7
279 Col-y-wobble new_solver reference 12:02 0.75
280 sittinduk new_solver reference 12:03 0.55
suethepotterer tracked neutrino 12:10 0.6
281 HCOONamatata new_solver reference 12:11 0.61
282 Steve Wood new_solver reference 12:28 0.57
283 phina new_solver reference 12:39 0.59
284 kapietro tracked reference 12:41 0.69
285 ifincham2 tracked reference 12:41 0.73
286 tyrotim new_solver reference 12:41 0.62
287 paul.verney new_solver reference 13:06 0.66
288 New Driver new_solver blog_solver 13:06 0.66
289 harryjmm new_solver reference 13:08 0.49
290 Merlin new_solver blog_solver 13:20 0.41
291 Nuck_the_king tracked reference 13:20 0.57
292 icycle new_solver reference 13:21 0.63
dankramlich new_solver neutrino 13:25 0.28
293 Aidleys new_solver reference 13:28 0.52
Winchelt618 tracked neutrino 13:31 0.51
ibaram new_solver neutrino 13:35 0.47
294 alistair.boere new_solver reference 13:38 0.58
295 Doofenschmirtz tracked blog_solver 13:49 0.54
296 kfb20 tracked reference 13:50 0.68
297 Charpentier new_solver tracked 13:58 0.4
298 Mendes tracked reference 14:14 0.55
299 BertieVII tracked reference 14:15 0.43
300 pfalloon tracked reference 14:25 0.55
301 david.14587 new_solver reference 14:29 0.57
302 Holly O new_solver reference 14:32 0.64
aravindg new_solver neutrino 14:45 0.08
303 bubbagrub new_solver reference 14:51 0.73
304 Xebeq tracked reference 14:54 0.78
305 michaelellisandrew new_solver reference 15:09 0.71
306 Jax74 new_solver reference 15:09 0.58
307 james new_solver reference 15:18 0.54
308 thechan new_solver tracked 15:22 0.45
309 Narayanan new_solver reference 15:24 0.69
310 RPE10538 tracked reference 15:25 0.61
311 felipedavid new_solver reference 15:39 0.76
312 Guy Hatton new_solver reference 15:42 0.73
313 matta87 new_solver reference 15:51 0.57
314 BlestSiren new_solver reference 15:59 0.54
315 PBarnes new_solver reference 16:11 0.53
316 pat2 new_solver reference 16:15 0.6
317 andrewt24 new_solver reference 16:16 0.8
chilibombom tracked neutrino 16:24 -0.09
318 anon emouse tracked tracked 16:47 0.64
319 howardt tracked reference 17:06 0.66
320 timendo new_solver reference 17:16 0.48
321 ian.shepherd new_solver reference 17:16 0.43
322 Flayan new_solver reference 17:39 0.42
misof new_solver neutrino 18:07 0.22
323 keithandginnybirrell new_solver reference 18:07 0.51
324 Clinton V. new_solver tracked 18:17 0.35
325 TonyK new_solver tracked 18:18 0.66
326 geekman2000 new_solver reference 18:21 0.54
327 bangsar new_solver reference 18:24 0.55
328 Geldart new_solver reference 18:27 0.78
329 Flora Garden new_solver reference 18:29 0.48
RaghuS new_solver neutrino 18:49 0.07
330 paulmcl tracked tracked 18:49 0.38
331 Aresbiscuits new_solver reference 18:50 0.46
332 Jean in Oxford new_solver reference 19:00 0.76
333 mxlunch new_solver tracked 19:33 0.3
334 Busker1959 new_solver reference 19:39 0.48
335 philby new_solver reference 19:58 0.56
336 shankar new_solver reference 19:58 0.52
337 darrell.j.baker new_solver reference 20:09 0.69
338 matt_o new_solver reference 20:57 0.58
339 dominic.c-b new_solver reference 21:07 0.52
maryht new_solver neutrino 21:18 0.55
Tired_commuter new_solver neutrino 21:41 0.16
340 Tomov new_solver tracked 21:48 0.77
ttto new_solver neutrino 21:58 0.49
341 jlloyd4424 new_solver tracked 21:59 0.7
342 Hazelnut new_solver tracked 22:04 0.57
343 nikknowssomecluessometimes new_solver tracked 22:14 0.45
harrys new_solver neutrino 22:58 0.18
344 Jilks new_solver tracked 23:08 0.49
Yiggsy new_solver neutrino 24:51 0.58
Philip van Dyck new_solver neutrino 24:57 0.37
345 Pompeydave tracked tracked 25:15 0.62
dave new_solver neutrino 25:59 0.44
PeterD10 new_solver neutrino 26:04 0.09
346 IanV new_solver tracked 29:10 0.66
347 nnortham new_solver tracked 32:10 0.42
348 crossworder new_solver tracked 46:05 0.63
consigliere new_solver neutrino 47:03 0.23
349 mcfarl new_solver tracked 49:32 0.54
350 jillanne new_solver tracked 50:08 0.61