MESON Chess Problem Database
Problem Display
PID: 7615 (4bN1n/2Kp2P1/5pp1/2Bpk1P1/3RPb1R/N1p5/2P1nP2/6Q1 w - - 0 1)
Mochalkin, Oleksandr Viktorovich
1st Prize, Buletin Problemistic, 1992-1993
#2
12 + 10
| 3681 | FIDE Album (1992-1994) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Rxd5#
- 1...Bd2
- 2.Rxd5#
- 1...Bh2
- 2.Rxd5#
- 1...Be3
- 2.Rxd5#
- 1...Bg3
- 2.Rxd5#
- 1...Bxg5
- 2.Rxd5#
- 1...fxg5
- 2.gxh8Q#
- 2.gxh8B#
- 1...f5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bc1
- Tries
- 1.Qd1?
- threat
- 2.Bd6#
- 1...Sxd4
- 2.Qxd4#
- 1...dxe4
- 2.Rd5#
- 1...fxg5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bd2
- 2.Rxd5#
- 1...d6
- 2.Bxd6#
- 1...Sf7!
- threat
- 1.Qh1?
- threat
- 2.Rxd5#
- 1...Sxd4
- 2.Bd6#
- 1...dxe4
- 2.Qxe4#
- 1...fxg5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bf7!
- threat
- 1.Qg2?
- threat
- 2.Rxd5#
- 1...Sxd4
- 2.Bd6#
- 1...dxe4
- 2.Qxe4#
- 1...fxg5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bf7!
- threat
- 1.f3?
- threat
- 2.Bd6#
- 2.Rxd5#
- 1...Sxg1
- 2.Rxd5#
- 1...Sxd4
- 2.Bxd4#
- 2.Bd6#
- 2.Qxd4#
- 1...fxg5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bf7
- 2.Bd6#
- 1...Be3
- 2.Rxd5#
- 1...Sf7
- 2.Rxd5#
- 1...d6
- 2.Bxd6#
- 2.Rxd5#
- 1...dxe4!
- threat
- 1.gxh8Q?
- threat
- 2.Qxf6#
- 1...Bxg5
- 2.Rxd5#
- 2.Qxg5#
- 1...Sxd4!
- threat
- 1.Qd1?
- Keys
- 1.Qg4!
- 1...Bxg5
- 2.Rxd5#
- 1...Sxd4
- 2.Qxf4#
- 1...dxe4
- 2.Sc4#
- 1...fxg5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bf7
- 2.Sxd7#
- 1...Bc1
- 2.Rxd5#
- 1...Bd2
- 2.Rxd5#
- 1...Bh2
- 2.Rxd5#
- 1...Be3
- 2.Rxd5#
- 1...Bg3
- 2.Rxd5#
- 1...Sc1
- 2.Qxf4#
- 1...Sg1
- 2.Qxf4#
- 1...Sg3
- 2.Qxf4#
- 1...Sf7
- 2.Sxg6#
- 1...f5
- 2.gxh8Q#
- 2.gxh8B#
- 1...d6
- 2.Qe6#
- 1...Bxg5
- 1.Qg4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- B(c);::R1(E),XP(d)
- B(c);XP(I)::R1(E),XP(d)
- P(f);XP(I)::PXS(j)=Q
- P(f);::PXS(j)=Q
- Tries
- Try
- Q(A);
- Threat
- B(H)
- Vars
- S(a);OGATE,XR(E)::QAB1(A),XS(a)
- P(d);SBLOCK,XP(F)::R1(E)
- P(f);XP(I)::PXS(j)=Q
- B(c);::R1(E),XP(d)
- P(h);::B(H),XP(h)
- Refutation
- S(j);
- Try
- Q(A);
- Threat
- R1(E),XP(d)
- Vars
- S(a);SBLOCK,XR(E)::B(H)
- P(d);OGATE,XP(F)::QAR1(A),XP(d)
- P(f);XP(I)::PXS(j)=Q
- Refutation
- B(i);
- Try
- Q(A);
- Threat
- R1(E),XP(d)
- Vars
- S(a);SBLOCK,XR(E)::B(H)
- P(d);OGATE,XP(F)::QAR1(A),XP(d)
- P(f);XP(I)::PXS(j)=Q
- Refutation
- B(i);
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- S(a);XQ(A)::R1(E),XP(d)
- P(f);XP(I)::PXS(j)=Q
- B(i);::B(H)
- B(c);::R1(E),XP(d)
- S(j);::R1(E),XP(d)
- Refutation
- P(d);XP(F)
- Try
- P(K);P_PINP(f),XS(j)
- Threat
- QAB1(K),XP(f)
- Refutation
- S(a);XR(E)
- Try
- Actual
- Q(A);
- Vars
- B(c);XP(I)::R1(E),XP(d)
- S(a);N_GUARD,XR(E)::QAB1(A),XB(c)
- P(d);N_GUARD,XP(F)::S(D)
- P(f);XP(I)::PXS(j)=Q
- B(i);N_GUARD::S(L),XP(h)
- B(c);::R1(E),XP(d)
- S(a);N_GUARD::QAB1(A),XB(c)
- S(j);N_GUARD,S_CUTB(i)::S(L),XP(g)
- P(f);::PXS(j)=Q
- P(h);N_GUARD::QAR1(A)
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).