# Black to move; White draws

coentje
Posers and Puzzles 07 Apr '06 18:11
1. coentje
Plop!
07 Apr '06 18:11
[gid]4b3/7p/3N4/p7/2R5/kpPpp3/p7/Q3K3 b - - 0 1[/gid]
2. 07 Apr '06 18:47
Originally posted by coentje
[gid]4b3/7p/3N4/p7/2R5/kpPpp3/p7/Q3K3 b - - 0 1[/gid]
Slick.
3. 07 Apr '06 20:061 edit

Yes, he does. Black's only move is 1. ... d2+.
Because 1. ... b2+ loses to 2.Ra4+ Bxa4 (or mate in 1or 2) 3.Nc4+ Kb3 4.Nxb2 wins easily.

So: 1. ... d2
2.Kf1 e2+ 3.Kxe2 d1=Q+ 4.Kxd1 b2 (other moves, then white wins with Kc1 and Qb2 checkmate) 5.Ra4+ Bxa4+ (or white mates with Qxa2) 6.Kd2 and after any promotion on a1, white has perpetual check after 7.Nc4+ , for instance: 6. ... bxQ=Q 7.Nc4+ Kb3 8.Na5+ and back to c4, alternating between c4 and a5 or a3 depending on the kings choice.
4. coentje
Plop!
07 Apr '06 20:28
Originally posted by Mephisto2
[fen]4b3/7p/3N4/p7/2R5/kpPpp3/p7/Q3K3 b - - 0 1[/fen]

Yes, he does. Black's only move is 1. ... d2+.
Because 1. ... b2+ loses to 2.Ra4+ Bxa4 (or mate in 1or 2) 3.Nc4+ Kb3 4.Nxb2 wins easily.

So: 1. ... d2
2.Kf1 e2+ 3.Kxe2 d1=Q+ 4.Kxd1 b2 (other moves, then white wins with Kc1 and Qb2 checkmate) 5.Ra4+ Bxa4+ (or white mates with Qxa2) 6.Kd2 and aft ...[text shortened]... + Kb3 8.Na5+ and back to c4, alternating between c4 and a5 or a3 depending on the kings choice.
No need anymore to say anything. Perfect solution to Mephisto2

Sorry about messing up the board post, did not see i pressed the wrong button untill now.