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Show HN: Light Flip – A cell inversion puzzle game
- mcphage 9y agoWhy is this one different from the hundreds of similar clones?
- rmal30 9y agoLights Out flips the neighbouring cells, this game flips all cells in the same row or column
- wingerlang 9y agoYou should probably make this really clear. I probably wouldn't download either version, however without any clear difference from the other 1000s of clones I instantly dismissed it after not seeing anything new.
- rmal30 9y agoAdded a note
- vsviridov 9y agoThis reminds me of a puzzle in an old point-and-click adventure with a Fridge with a lock like this... http://questgame.ru/images/pilots/2.jpg http://questgame.ru/images/pilots/2.jpg
- smcmurtry 9y agoI haven't downloaded the app, so maybe this makes sense somehow, but the following text from the app description confused me: Difficulty ratings: - 2x2 board - Easy - 3x3 board - Easy - 4x4 board - Hard - 5x5 board - Medium - 6x6 board - Impossible - 7x7 board - Hard Shouldn't the difficulty rating increase with increasing board size?
- rjp0008 9y agoSolving an even square might be inherently harder than an odd square. I haven't played the game though.
- rmal30 9y agoYep, it requires n^2 moves for even boards while odd boards require less moves (no formula found yet). Using a computer, I found, by brute force, that the 5x5 can be solved in 8 moves at most, the problem quickly becomes intractable for 7x7 and above. It looks like this might be NP hard according to another post: http://stackoverflow.com/questions/27436275/how-can-i-further-optimize-this-solver-of-a-variant-of-lights-out http://stackoverflow.com/questions/27436275/how-can-i-furthe...
- vgddvh 9y agoWhy would anyone play this game when he could just diagonalize (nxm)x(nxm) matrix in F2 and get a basis? (in case of non-singular, otherwise impossible) upd: misunderstood the game, it's about solving Ax=b in F2, so Gauss elimination.
- nhebb 9y agoYeah, that's what the rest of us were thinking as well.
- nickcw 9y agoI had fun playing this game for a while. Eventually I discovered some fairly reliable algorithms which enabled me to collect all the achievements. I'd like some bigger boards to have a go with now!
- fluffyllemon 9y agoStrategy that seems to be pretty effective: click all the squares that are originally yellow
- bbcbasic 9y agoOn even board to flip a square, hit square and hit all other squares in the same row and all other squares in the same column. To flip 4 squares in a 2 x 2 arrangement, hit all of those 4 squares. What makes the bigger grids hard is the size of my little finger.