MESON Chess Problem Database
Problem Display
PID: 161296 (1n6/1K6/p2p2Q1/2pkp3/R2P4/NP6/3B2n1/3R2r1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schweizerische Arbeiter Schachzeitung, 1978
#2
8 + 8
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...cxd4
- 2.Ra5#
- 1...exd4
- 2.Qf5#
- 1...e4
- 2.Qf5#
- 2.Qf7#
- 2.Qg8#
- 1...cxd4
- Tries
- 1.Sb1?
- threat
- 2.Sc3#
- 1...cxd4
- 2.Ra5#
- 1...exd4
- 2.Qf5#
- 1...c4!
- threat
- 1.Sc4?
- threat
- 2.Sb6#
- 1...Kxd4
- 2.Be1#
- 1...cxd4
- 2.Ra5#
- 1...exd4
- 2.Qf5#
- 1...Sd7!
- threat
- 1.dxe5?
- threat
- 2.Qxd6#
- 1...Kxe5
- 2.Bc3#
- 1...dxe5
- 2.Be1#
- 1...c4!
- threat
- 1.Sb1?
- Keys
- 1.dxc5!
- threat
- 2.Qxd6#
- 1...Kxc5
- 2.Bb4#
- 1...dxc5
- 2.Be1#
- threat
- 1.dxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- P(c);OGATEB,SBLOCK,XP(F)::R(E)
- P(e);OGATEB,XP(F)::QAR2(G)
- Tries
- Try
- S(C);
- Threat
- S(C)
- Vars
- P(c);OGATEB,SBLOCK,XP(F)::R(E)
- P(e);OGATEB,XP(F)::QAR2(G)
- Refutation
- P(c);
- Try
- S(C);
- Threat
- S(C)
- Vars
- K(d);OGATEB,P-FLIGHT,XP(F)::R(A)+B(B)
- P(c);OGATEB,SBLOCK,XP(F)::R(E)
- P(e);OGATEB,SBLOCK,XP(F)::QAR2(G)
- Refutation
- S(h);
- Try
- P(F);XP(e)
- Threat
- QAR1(G),XP(g)
- Vars
- K(d);P-FLIGHT,XP(F)::B(B)
- P(g);SBLOCK,XP(F)::R(A)+B(B)
- Refutation
- P(c);
- Try
- Actual
- P(F);XP(c)
- Threat
- QAR1(G),XP(g)
- Vars
- K(d);P-FLIGHT,XP(F)::B(B)
- P(g);SBLOCK,XP(F)::R(A)+B(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).