| Community Blog Discussions - There is no reachable chess position with more than 218 moves. > By checking all approximately 8.7x10^45 reachable chess positions? That's a large overestimate. https://github.com/tromp/ChessPositionRanking accurately estimates the number of legal chess positions… | tromp1234 |
| General Chess Discussion - Proof Games wanted to improve accuracy of 4x10^44 estimated legal positions > @tromp1234 I invited you to the study as a contributor, you may edit and confirm if it works and can also see the solution, also I will try to paste the PGN. I think you invited another user called … | tromp1234 |
| General Chess Discussion - Proof Games wanted to improve accuracy of 4x10^44 estimated legal positions @Ben2006Tor said in #16: > I believe most of the positions in the site are legal. Of the 919, some 500-550 are expected to be legal. Also, I only label issues with "proof game wanted" after I've convi… | tromp1234 |
| General Chess Discussion - Proof Games wanted to improve accuracy of 4x10^44 estimated legal positions @IsaiasZM said in #15: > With pasting it in PGN format do you mean the PGN *File* of the "game" or just the *content* of the PGN? (both maybe?) I just mean the pgn short algebraic notation: e.g. as in… | tromp1234 |
| General Chess Discussion - Proof Games wanted to improve accuracy of 4x10^44 estimated legal positions @Linspiring said in #9: > Also do people that solve one of the positions get credit somewhere like naming rights given to the scientist that discovers a new thing? If you did that I could see it incre… | tromp1234 |
| General Chess Discussion - Proof Games wanted to improve accuracy of 4x10^44 estimated legal positions Thanks, @Ben2006Tor and @IsaiasZM ! In future, could you please also paste the game record in PGN format? It's some effort to transcribe it from the links you provide. | tromp1234 |
| General Chess Discussion - My puzzle rating is 3056, is it good? what is the best puzzle rating 3056 is very good. I'm at 3166 now after peaking at 3294 but always study each puzzle for at least several minutes. Sometimes I stare for an hour at a puzzle before i figure it out (or think I figured… | tromp1234 |
| General Chess Discussion - Proof Games wanted to improve accuracy of 4x10^44 estimated legal positions My Chess Position Ranking project at github.com/tromp/ChessPositionRanking has produced the first accurate estimation of the number of legal chess positions, at 4.2e44 +- 1.1e44 with a 95% confidence … | tromp1234 |