turns out the original convention for expressing levels poops out at 242. i never thought levels this high would be solvable when i first made the puzzle! oops.
anyway, now the board is expressed as a series of XXYY where XX is a two-character hex number representing the shape, and YY a two-char hex for the color, for each square. everything else is the same. this should get us to level, hmmn, 2000 or so. i'd say we'll never make it, but you never know...
adum
Levels 242 and above
well then, i think this is almost certainly solvable, tho i can't prove it because my solver isn't quite as good as yours 
in the past i've checked the generation algorithm carefully, and it's quite a simple one (compared to coil, for example, which was a beast). it has clearly generated 337 solvable levels, which is a good sign. i've also had it generate tens of thousands of small test levels that can be quickly solved to make sure it isn't messed up.
so probably this level is just harder on your algorithm =)
adum
in the past i've checked the generation algorithm carefully, and it's quite a simple one (compared to coil, for example, which was a beast). it has clearly generated 337 solvable levels, which is a good sign. i've also had it generate tens of thousands of small test levels that can be quickly solved to make sure it isn't messed up.
so probably this level is just harder on your algorithm =)
adum
im almost certain this level is broken ... would you mind remaking that one? you can save it for later reference anyway
(yes it generated 1000 levels - on the other hand my solver solved 337 levels straight within 0,5 secs each)
p.s.: whats the problem with generating mcoil levels? "drive" around with the snake on an empty level ... as long as you wish ... then place walls on remaining fields!? no?
(yes it generated 1000 levels - on the other hand my solver solved 337 levels straight within 0,5 secs each)
p.s.: whats the problem with generating mcoil levels? "drive" around with the snake on an empty level ... as long as you wish ... then place walls on remaining fields!? no?
okay, since i can't prove that 338 is solvable, i've remade it. i'm now also saving the solutions along with the problems, so it'll be easy to verify future cases like this.
looking back at the algo, i remember that it's not quite as straightforward as i remembered -- the simple approach of walking around until you fill up a board doesn't work because you end up with gaps, so there's a bit of filling in that goes on. but still, i think it's valid. we'll see if you get stuck again =)
the coil generator is hard because the basic driving around approach produces a board that has way too many blocked squares and too few choices. solutions would be trivial, even by humans. so my generator starts with a path and then uses simulated annealing techniques to expand it.
adum
looking back at the algo, i remember that it's not quite as straightforward as i remembered -- the simple approach of walking around until you fill up a board doesn't work because you end up with gaps, so there's a bit of filling in that goes on. but still, i think it's valid. we'll see if you get stuck again =)
the coil generator is hard because the basic driving around approach produces a board that has way too many blocked squares and too few choices. solutions would be trivial, even by humans. so my generator starts with a path and then uses simulated annealing techniques to expand it.
adum
level stayed the same for my little perl script until i clicked "goto lvl 338" by hand ... some weird caching going on? that level works like a charm ... thank you
458 is also broken tho it seems
LEVEL #458 49x49
2719,142a,2721,222f,0e17,2913,1026,1d2a,2118,2819,0d12,2f02,0d09,0719,0026,122a,1d17,2e02,1f13,2804,0813,2419,1327,1612,182a,0c0c,0119,1323,0f26,092d,291e,140e,2426,0506,240f,3017,1c0e,241d,2f15,2418,1927,2428,2214,1d2e,2416,1d09,2014,1c1e,0028
that level works like a charm ... thank you458 is also broken tho it seems
LEVEL #458 49x49
2719,142a,2721,222f,0e17,2913,1026,1d2a,2118,2819,0d12,2f02,0d09,0719,0026,122a,1d17,2e02,1f13,2804,0813,2419,1327,1612,182a,0c0c,0119,1323,0f26,092d,291e,140e,2426,0506,240f,3017,1c0e,241d,2f15,2418,1927,2428,2214,1d2e,2416,1d09,2014,1c1e,0028