CCRL Discussion Board

Ok, there's obviously nobody with an high-end machine willing to support this, so I've done some research myself lately.. 354 TB-Hits Initial Position! 180h Depth46.jpg I ran Stockfish-7 with Syzygy bases for over 180(!) hours from root position and got some reasonable results: It was showing 354 TB...

Nevermind my last comment.

The maximum DTM50 mate in 112 for KNNvKP was discovered by kronsteen and galen already (see http://galen.metapath.org/egtb50/)

--> 6k1/p7/8/8/7N/7K/2N5/8 w - - 0 1

Ok, this topic is obsolete.

I found the solution from kronsteen and galen about the max mate DTM50 in 112 and many other interesting things for KNNvKP (see http://galen.metapath.org/egtb50/)

6k1/p7/8/8/7N/7K/2N5/8 w - - 0 1


This thread can be closed.

I've done some research myself lately.. I think this is a legal DTM50 mate in 90(!) moves for KNNvKP: 8/5k2/8/N3K3/p7/N7/8/8 w - - 0 1 Current DTM bases (Nalimov/Gaviota) say that 1.Nc6 will win in 83 moves, but DTZ50 bases (Syzygy) can destroy this dream and would draw the "optimal" DTM l...

Additional Info: If someone is wondering how my first 32-piece Position was created: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 d6 5. Be3 g6 6. Be2 Bg7 7. O-O O-O 8. h3 Ne7 9. Qd2 c6 10. Rad1 Be6 11. a4 Qc7 12. Rfe1 Rfd8 Call it a Four Knights, Scotch or Modern opening line with a little Caro-Kann in the ...

When I take 6k1/8/8/1N3p2/6K1/6N1/8/8 w - - 0 1 .. and do the following moves 1. Kf4 Kf7 2. Nc7 Ke7 3. Na8 Kd6 Stockfish 7 with Syzygy TBs still shows me a legal DTZ50 winning and Nalimov/Gaviota says it's DTM in 63 --> N7/8/3k4/5p2/5K2/6N1/8/8 w - - I wondered if this could be the maximum legal(!) ...

Hello everybody,

what is the maximum legal(!) Mate in X position for KNNvKP ?

All I found out so far, this should be a valid DTM50 mate in 63 moves:
--> N7/8/3k4/5p2/5K2/6N1/8/8 w - - 0 1

Anyone else?

Cheers, pa1ny

I wonder if (and when) Stockfish 7 hits Syzygy tablebases in positions with full 32 pieces still onboard. So I picked a random opening where no piece is captured till move 12 and was quite surprised that I got the first tablebase hits within 23 minutes! And I only used a rather old notebook (5 years...