Mate in 19

[peter]

It comes from an old test position originally from John Dart That I modified from about 10 years ago, see here:

http://talkchess.com/forum3/viewtopic.p ... on#p333988

Ah, I see, I knew I had seen it sometimes somewhere before.

[Ajedrecista]

Hello Ignacio:

Here is your mate in 10:

FEN: r5kr/pp2q1pp/2pp3B/3n2Q1/3P4/P4R2/6PP/5RK1 w - - 3 8

Chest 5.2:
FEN: r5kr/pp2q1pp/2pp3B/3n2Q1/3P4/P4R2/6PP/5RK1 w - - (9+11)
Position-Analysis: C0/R0/K1/P7/X32 W:8/41
Search for 1. Special-Mate [C0/R0/K2/P9/X42] in 126 ... (Hash=2044MB)
10 3:08:42 6.085.802.965 1.043.794 +M10 Dg5-g4
Search completed ... (Time=11321.96s)
Mate in 10 found ! (1. Solution in 3:08:41)
10/10 3:12:15 11.745.866.641 1.037.441 +M10 Dg5-g4 c6-c5 h2-h4 c5-c4 h4-h5 c4-c3 Ah6xg7 Cd5-e3 Tf3xe3 De7xe3+ Rg1-h1 De3-e8 Ag7-h6+ De8-g6 h5xg6 Ta8-e8 g6xh7+ Rg8xh7 Dg4-g7+

Gustav is better, 12 minutes.

Best.

Thank you very much! Just looking at the number of nodes and the speed I was getting, it would have taken around 18 or 20 hours in my PC, if not more, so totally unfeasible for me, who do not like overnight runs.

No comments on Gustav, the solution time is enough.

Regards from Spain.

Ajedrecista.

[peter]

No comments on Gustav, the solution time is enough.

Mate- field h7 was a mistake too, shorter mates of course can happen on other fields too.