MESON Chess Problem Database
Problem Display
PID: 86802 (2n1R2n/1P1Ppp2/4k2b/1B1bNp2/2N2p2/qpBQ4/4p2K/8 w - - 0 1)
Pilchenko, Viacheslav Karlovich
Probleemblad, 1998
#2
9 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...f6
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...f6
- Tries
- 1.Sf3?
- threat
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bxf3
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bxc4
- 2.Bxc4#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bxb7
- 2.d8S#
- 1...f6
- 2.d8S#
- 1...e1Q
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1S
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1B
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1R
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qc1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qb2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qb4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qc5
- 2.d8S#
- 1...Qa1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa5
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa6
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa7
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa8
- 2.d8S#
- 1...Be4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bc6
- 2.d8S#
- 1...Bg5
- 2.Sxg5#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bg7
- 2.Sg5#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bf8
- 2.Sg5#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Sb6
- 2.d8S#
- 1...Sd6
- 2.d8S#
- 1...Sa7
- 2.d8S#
- 1...Sg6
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...b2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qd6!
- threat
- 1.Sg4?
- threat
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bxc4
- 2.Bxc4#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bxb7
- 2.d8S#
- 1...fxg4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...f6
- 2.d8S#
- 1...e1Q
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1S
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1B
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1R
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qc1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qb2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qb4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qc5
- 2.d8S#
- 1...Qa1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa5
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa6
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa7
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa8
- 2.d8S#
- 1...Bh1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bg2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bf3
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Be4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bc6
- 2.d8S#
- 1...Bg5
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bg7
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bf8
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Sb6
- 2.d8S#
- 1...Sd6
- 2.d8S#
- 1...Sa7
- 2.d8S#
- 1...Sg6
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...b2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...f3
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qd6!
- threat
- 1.Sg6?
- threat
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bxc4
- 2.Bxc4#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bxb7
- 2.d8S#
- 1...Sxg6
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...fxg6
- 2.d8S#
- 1...f6
- 2.d8S#
- 1...e1Q
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1S
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1B
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...e1R
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qc1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qb2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qb4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qc5
- 2.d8S#
- 1...Qa1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa5
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa6
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa7
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qa8
- 2.d8S#
- 1...Bh1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bg2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bf3
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Be4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bc6
- 2.d8S#
- 1...Bg5
- 2.Sf8#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bg7
- 2.Sxf4#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bf8
- 2.Sxf4#
- 2.Sxf8#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Sb6
- 2.d8S#
- 1...Sd6
- 2.Rxe7#
- 2.d8S#
- 1...Sa7
- 2.d8S#
- 1...b2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...f3
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Qd6!
- threat
- 1.Sxf7?
- threat
- 2.Sd8#
- 2.d8S#
- 1...Kxf7
- 2.Qxf5#
- 1...Sxf7
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qd6
- 2.Sd8#
- 1...Qa5!
- threat
- 1.Sf3?
- Keys
- 1.Sc6!
- threat
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Kxd7
- 2.bxc8Q#
- 1...Bxc4
- 2.Sd8#
- 2.Bxc4#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bxc6
- 2.d8S#
- 1...f6
- 2.Sd8#
- 1...e1Q
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...e1S
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...e1B
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...e1R
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qd6
- 2.Sd8#
- 1...Qc1
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qb2
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qb4
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qc5
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa1
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa2
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa4
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa5
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa6
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa7
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa8
- 2.Sd8#
- 1...Bh1
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bg2
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bf3
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Be4
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bg5
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Bg7
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Bf8
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Sb6
- 2.Sd8#
- 1...Sd6
- 2.Sd8#
- 2.Rxe7#
- 1...Sa7
- 2.Sd8#
- 1...Sg6
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...b2
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- 1...f3
- 2.Sd8#
- 2.dxc8Q#
- 2.dxc8B#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(e);XP(G)::P=S
- P(j);::P=S
- Q(b);::P=S
- Q(b);::PXS(k)=Q
- B(e);::P=S
- S(k);::P=S
- Refutation
- Q(b);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(e);XP(G)::P=S
- P(j);::P=S
- Q(b);::P=S
- Q(b);::PXS(k)=Q
- B(e);::P=S
- S(k);::P=S
- Refutation
- Q(b);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(e);XP(G)::P=S
- P(j);XS(F)::P=S
- P(j);::P=S
- Q(b);::P=S
- Q(b);::PXS(k)=Q
- B(e);::P=S
- S(k);::P=S
- Refutation
- Q(b);
- Try
- S(F);XP(j)
- Threat
- DUALS(2)
- Vars
- K(g);N_SPINP(i),S_FLIGHT,XS(F)::QAR2(C),XP(f)
- S(l);SBLOCK,XS(F)::PXS(k)=Q
- Q(b);::S(F)
- Refutation
- Q(b);
- Try
- Actual
- S(F);
- Threat
- DUALS(3)
- Vars
- K(g);N_SPINP(i),P_SPINB(e),S_FLIGHT,XP(H)::PXS(k)=Q
- B(e);XS(F)::P=S
- P(j);::S(F)
- Q(b);::S(F)
- Q(b);::PXS(k)=Q
- S(k);::S(F)
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).