MESON Chess Problem Database
Problem Display
PID: 53287 (2R1b1B1/2BP1P2/4Rp2/3k3n/Q2nrb2/1N4NK/8/8 w - - 0 1)
Chepizhni, Viktor Ivanovich
2nd Place, Source?, 2000
#2
10 + 7
| 23 | Die Schwalbe | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Kxe6
- 2.fxe8Q#
- 2.fxe8R#
- 1...Re5
- 2.Rd6#
- 1...Sc2
- 2.Qc6#
- 2.Qxe4#
- 1...Se2
- 2.Qc6#
- 2.Qxe4#
- 1...Sf3
- 2.Qc6#
- 2.Qxe4#
- 1...Sb5
- 2.Qxe4#
- 1...Sf5
- 2.Qc6#
- 2.Qxe4#
- 1...Sc6
- 2.Qxc6#
- 2.Qxe4#
- 1...Sxe6
- 2.Qxe4#
- 1...Kxe6
- Tries
- 1.Bxf4?
- threat
- 2.Rd6#
- 2.Qc4#
- 1...Kxe6
- 2.fxe8Q#
- 2.fxe8R#
- 1...Rxf4
- 2.Qc4#
- 1...Rxe6
- 2.Rc5#
- 2.Qc4#
- 2.Qxd4#
- 1...Bxd7
- 2.Qxd7#
- 2.Qc4#
- 1...Sxb3
- 2.Rd6#
- 2.Qxe4#
- 1...Sxe6
- 2.Qc6#
- 2.Qxe4#
- 2.Qa8#
- 1...Re5
- 2.Qc4#
- 1...Sc2
- 2.Rd6#
- 2.Qc6#
- 2.Qxe4#
- 1...Se2
- 2.Rd6#
- 2.Qc6#
- 2.Qxe4#
- 1...Sf3
- 2.Rd6#
- 2.Qc6#
- 2.Qxe4#
- 1...Sb5
- 2.Qxe4#
- 1...Sf5
- 2.Qc6#
- 2.Qxe4#
- 1...Sc6
- 2.Rd6#
- 2.Qxc6#
- 2.Qxe4#
- 1...Sxf4+!
- threat
- 1.Be5?
- threat
- 2.Qc4#
- 1...Kxe6
- 2.fxe8Q#
- 2.fxe8R#
- 1...Sxb3
- 2.Qc6#
- 1...Sxe6
- 2.Qxe4#
- 1...Sc2
- 2.Qc6#
- 1...Se2
- 2.Qc6#
- 1...Sf3
- 2.Qc6#
- 1...Sf5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Sb5!
- threat
- 1.Bb8?
- threat
- 2.Qc4#
- 1...Kxe6
- 2.fxe8Q#
- 2.fxe8R#
- 1...Sxb3
- 2.Qxe4#
- 1...Sxe6
- 2.Qc6#
- 2.Qxe4#
- 2.Qa8#
- 1...Sc2
- 2.Qc6#
- 2.Qxe4#
- 1...Se2
- 2.Qc6#
- 2.Qxe4#
- 1...Sf3
- 2.Qc6#
- 2.Qxe4#
- 1...Sb5
- 2.Qxe4#
- 1...Sf5
- 2.Qc6#
- 2.Qxe4#
- 1...Sc6
- 2.Qxc6#
- 2.Qxe4#
- 1...Bc7!
- threat
- 1.Qb5+?
- 1...Kxe6
- 2.Rxe8#
- 2.dxe8Q#
- 2.dxe8R#
- 2.fxe8Q#
- 2.fxe8R#
- 1...Sxb5!
- 1...Kxe6
- 1.Qxd4+?
- 1...Kxe6
- 2.Rxe8#
- 2.dxe8Q#
- 2.dxe8R#
- 2.fxe8Q#
- 2.fxe8R#
- 1...Rxd4!
- 1...Kxe6
- 1.Qa8+?
- 1...Kxe6
- 2.dxe8Q#
- 2.fxe8Q#
- 1...Sc6
- 2.Qxc6#
- 1...Kc4!
- 1...Kxe6
- 1.d8Q+?
- 1...Kxe6
- 2.Sc5#
- 2.Qaxe8#
- 2.Qc4#
- 2.fxe8Q#
- 2.fxe8S#
- 2.fxe8B#
- 2.fxe8R#
- 2.f8S#
- 1...Bd6
- 2.Qxd6#
- 1...Bd7!
- 1...Kxe6
- 1.d8R+?
- 1...Kxe6
- 2.Qxe8#
- 2.fxe8Q#
- 2.fxe8R#
- 1...Bd6
- 2.Rdxd6#
- 1...Bd7!
- 1...Kxe6
- 1.f8Q?
- threat
- 2.Re5#
- 2.Qc5#
- 1...Rxe6
- 2.Qc5#
- 1...Bxc7
- 2.Qc5#
- 1...Bxd7
- 2.Qc5#
- 1...Sxb3
- 2.Re5#
- 2.Qxe4#
- 1...Sxe6
- 2.Qb5#
- 2.Qc5#
- 2.Qxe4#
- 1...Sb5
- 2.Qxb5#
- 2.Qc5#
- 2.Qxe4#
- 1...Re5
- 2.Rxe5#
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 2.Qxd4#
- 1...Be5
- 2.Rxe5#
- 2.Rd6#
- 2.Qc5#
- 1...Bd6
- 2.Qxd6#
- 1...Bf7!
- threat
- 1.Bxf4?
- Keys
- 1.Bd6!
- threat
- 2.Qc4#
- 1...Kxe6
- 2.fxe8S#
- 1...Rxe6
- 2.Qxd4#
- 1...Sxb3
- 2.Qxe4#
- 1...Sxe6
- 2.Qc6#
- 1...Sc2
- 2.Qxe4#
- 1...Se2
- 2.Qxe4#
- 1...Sf3
- 2.Qxe4#
- 1...Sb5
- 2.Qxe4#
- 1...Sf5
- 2.Qxe4#
- 1...Sc6
- 2.Qxe4#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- K(d);S_FLIGHT,XR(E)::PXB(g)=Q
- R(b);SBLOCK,S_CUTB(c)::R1(E)
- S(a);OGATE::QAB1(D),XR(b)
- S(a);OGATE,XR(E)::QAB1(D),XR(b)
- Tries
- Try
- B(F);XB(c)
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(E)::PXB(g)=Q
- R(b);XB(F)::QAB1(D)
- R(b);::QAB1(D)
- S(a);OGATE::QAB1(D),XR(b)
- Refutation
- S(e);CHECK,XB(F)
- Try
- B(F);
- Threat
- QAB1(D)
- Vars
- K(d);S_FLIGHT,XR(E)::PXB(g)=Q
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);OGATE,SBLOCK,XR(E)::QAB1(D),XR(b)
- S(a);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- Refutation
- S(a);
- Try
- B(F);
- Threat
- QAB1(D)
- Vars
- K(d);S_FLIGHT,XR(E)::PXB(g)=Q
- S(a);OGATE,XS(A)::QAB1(D),XR(b)
- S(a);OGATE::QAB1(D),XR(b)
- Refutation
- B(c);
- Try
- Q(D);CHECK
- Refutation
- S(a);XQ(D)
- Try
- Q(D);CHECK,XS(a)
- Refutation
- R(b);XQ(D)
- Try
- Q(D);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(D),XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- P(G);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAR1(G),XB(c)
- Refutation
- B(g);P_PINR(E),P_SPINB(g)
- Try
- P(G);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::R1(G),XB(c)
- Refutation
- B(g);P_PINR(E),P_SPINB(g)
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- R(b);P_SPINR(b),XR(E)::QAR1(H)
- B(c);XB(F)::QAR1(H)
- B(g);P_PINR(E),XP(G)::QAR1(H)
- B(c);N_GUARD::QAR1(H),XB(c)
- Refutation
- B(g);
- Try
- Actual
- B(F);
- Threat
- QAB1(D)
- Vars
- K(d);S_FLIGHT,XR(E)::PXB(g)=S
- R(b);N_GUARD,SBLOCK,XR(E)::QAR1(D),XS(a)
- S(a);OGATE,XS(A)::QAB1(D),XR(b)
- S(a);N_GUARD,SBLOCK,XR(E)::QAB1(D)
- S(a);OGATE::QAB1(D),XR(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).