MESON Chess Problem Database
Problem Display
PID: 123255 (4B3/1P2p2P/1P1RPR1K/4k3/1p2P2p/1n2Q2n/8/8 w - - 0 1)
Chepizhni, Viktor Ivanovich
Source?, 1982
#2
10 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxd6
- 2.b8Q#
- 2.b8B#
- 1...Kxf6
- 2.h8Q#
- 2.h8B#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sg5
- 2.Qf4#
- 1...Kxd6
- Tries
- 1.Bf7?
- 1...Kxf6
- 2.h8Q#
- 2.h8B#
- 1...exd6
- 2.Rf5#
- 1...exf6
- 2.Rd5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sg5
- 2.Qf4#
- 1...Kxd6!
- 1...Kxf6
- 1.Rc6?
- threat
- 2.Rf5#
- 1...Kxf6
- 2.h8Q#
- 2.h8B#
- 1...exf6
- 2.b8Q#
- 2.b8B#
- 1...Sd4!
- threat
- 1.Rg6?
- threat
- 2.Rd5#
- 1...Kxd6
- 2.b8Q#
- 2.b8B#
- 1...exd6
- 2.h8Q#
- 2.h8B#
- 1...Sf4!
- threat
- 1.Qc5+?
- 1...Kxe4
- 2.Bc6#
- 2.Bg6#
- 1...Kxf6
- 2.Qf5#
- 2.h8Q#
- 2.h8B#
- 1...Sxc5!
- 1...Kxe4
- 1.Qg5+?
- 1...Kxe4
- 2.Bc6#
- 2.Bg6#
- 1...Kxd6
- 2.Qd5#
- 2.b8Q#
- 2.b8B#
- 1...Sxg5!
- 1...Kxe4
- 1.Qc3+?
- 1...Kxe4
- 2.Bc6#
- 2.Bg6#
- 2.Qe1#
- 1...Kxd6
- 2.Qc7#
- 2.b8Q#
- 2.b8B#
- 1...Sd4
- 2.Qxd4#
- 1...bxc3!
- 1...Kxe4
- 1.Qg3+?
- 1...Kxe4
- 2.Bc6#
- 2.Bg6#
- 2.Qe1#
- 1...Kxf6
- 2.Qg7#
- 2.h8Q#
- 2.h8B#
- 1...Sf4
- 2.Qxf4#
- 1...hxg3!
- 1...Kxe4
- 1.b8Q?
- threat
- 2.Rf5#
- 1...Kxf6
- 2.h8Q#
- 2.h8B#
- 1...exf6
- 2.Rc6#
- 1...Sd4
- 2.Qxd4#
- 1...exd6!
- threat
- 1.b8B?
- threat
- 2.Rf5#
- 1...Kxf6
- 2.h8Q#
- 2.h8B#
- 1...exf6
- 2.Rc6#
- 1...Sd4
- 2.Qxd4#
- 1...exd6!
- threat
- 1.h8Q?
- threat
- 2.Rd5#
- 1...Kxd6
- 2.b8Q#
- 2.b8B#
- 1...exd6
- 2.Rg6#
- 1...Sf4
- 2.Qxf4#
- 1...exf6!
- threat
- 1.h8B?
- threat
- 2.Rd5#
- 1...Kxd6
- 2.b8Q#
- 2.b8B#
- 1...exd6
- 2.Rg6#
- 1...Sf4
- 2.Qxf4#
- 1...exf6!
- threat
- 1.Bf7?
- Keys
- 1.Bd7!
- 1...Kxd6
- 2.b8Q#
- 2.b8B#
- 1...Kxf6
- 2.h8Q#
- 2.h8B#
- 1...exd6
- 2.Rf5#
- 1...exf6
- 2.Rd5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sg5
- 2.Qf4#
- 1...Kxd6
- 1.Bd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(e);S_FLIGHT,XR(D)::P=Q
- K(e);S_FLIGHT,XR(F)::P=Q
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(b);N_GUARD::QAB1(A)
- S(b);N_GUARD::QAB1(A),XS(b)
- Tries
- Try
- B(J);
- Vars
- K(e);S_FLIGHT,XR(F)::P=Q
- P(f);SBLOCK,XR(D)::R1(F)
- P(f);SBLOCK,XR(F)::R1(D)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(b);N_GUARD::QAB1(A)
- S(b);N_GUARD::QAB1(A),XS(b)
- Refutation
- K(e);S_FLIGHT,XR(D)
- Try
- R(D);
- Threat
- R1(F)
- Vars
- K(e);S_FLIGHT,XR(F)::P=Q
- P(f);SBLOCK,XR(F)::P=Q
- Refutation
- S(a);
- Try
- R(F);
- Threat
- R1(D)
- Vars
- K(e);S_FLIGHT,XR(D)::P=Q
- P(f);SBLOCK,XR(D)::P=Q
- Refutation
- S(b);
- Try
- Q(A);CHECK
- Refutation
- S(a);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- S(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
- Refutation
- P(c);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
- Refutation
- P(d);XQ(A)
- Try
- P(H);
- Threat
- R1(F)
- Vars
- K(e);S_FLIGHT,XR(F)::P=Q
- P(f);SBLOCK,XR(F)::QAB(H)+R(D)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- P(f);P_SPINP(f),XR(D)
- Try
- P(H);
- Threat
- R1(F)
- Vars
- K(e);S_FLIGHT,XR(F)::P=Q
- P(f);SBLOCK,XR(F)::B(H)+R(D)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- P(f);P_SPINP(f),XR(D)
- Try
- P(I);
- Threat
- R1(D)
- Vars
- K(e);S_FLIGHT,XR(D)::P=Q
- P(f);SBLOCK,XR(D)::QAB(I)+R(F)
- S(b);N_GUARD::QAB1(A),XS(b)
- Refutation
- P(f);P_SPINP(f),XR(F)
- Try
- P(I);
- Threat
- R1(D)
- Vars
- K(e);S_FLIGHT,XR(D)::P=Q
- P(f);SBLOCK,XR(D)::B(I)+R(F)
- S(b);N_GUARD::QAB1(A),XS(b)
- Refutation
- P(f);P_SPINP(f),XR(F)
- Try
- Actual
- B(J);
- Vars
- K(e);S_FLIGHT,XR(D)::P=Q
- K(e);S_FLIGHT,XR(F)::P=Q
- P(f);SBLOCK,XR(D)::R1(F)
- P(f);SBLOCK,XR(F)::R1(D)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(b);N_GUARD::QAB1(A)
- S(b);N_GUARD::QAB1(A),XS(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).