MESON Chess Problem Database
Problem Display
PID: 105880 (8/5pK1/2Rp2p1/3pR3/3kBBQp/2p5/1b1PpP2/3rr1n1 w - - 0 1)
Kopaev, Viacheslav Georgievich
1st Prize, The Hindu, 1988
#2
8 + 12
| 6490 | yacpdb | 2009 |
| 102 | Probleemblad | 2010 |
| 5454 | Near Snap | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.dxc3#
- 1...Ba3
- 2.dxc3#
- 1...dxe5
- 2.Be3#
- 1...Bc1
- Tries
- 1.Bh2?
- threat
- 2.Bb1#
- 2.Bc2#
- 2.Bf5#
- 2.Bxg6#
- 2.Rxd5#
- 1...dxe4
- 2.Qxe4#
- 1...Sh3
- 2.Rxd5#
- 1...Rb1
- 2.Bxb1#
- 2.Bc2#
- 2.Bf5#
- 2.Bxg6#
- 2.Rxd5#
- 1...c2
- 2.Bxc2#
- 2.Bf5#
- 2.Bxg6#
- 2.Rxd5#
- 1...g5
- 2.Bb1#
- 2.Bc2#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Rxd5#
- 1...f5
- 2.Bxf5#
- 2.Rxd5#
- 1...dxe5!
- threat
- 1.Bg3?
- threat
- 2.Bb1#
- 2.Bc2#
- 2.Bf5#
- 2.Bxg6#
- 2.Rxd5#
- 1...hxg3
- 2.Rxd5#
- 1...dxe4
- 2.Qxe4#
- 1...Sh3
- 2.Rxd5#
- 1...Rb1
- 2.Bxb1#
- 2.Bc2#
- 2.Bf5#
- 2.Bxg6#
- 2.Rxd5#
- 1...c2
- 2.Bxc2#
- 2.Bf5#
- 2.Bxg6#
- 2.Rxd5#
- 1...g5
- 2.Bb1#
- 2.Bc2#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Rxd5#
- 1...f5
- 2.Bxf5#
- 2.Rxd5#
- 1...dxe5!
- threat
- 1.Bh6?
- threat
- 2.Rxd5#
- 1...dxe4
- 2.Qxe4#
- 1...dxe5
- 2.Be3#
- 1...Kxe5!
- threat
- 1.Re6?
- threat
- 2.Be3#
- 1...dxe4
- 2.Rexd6#
- 1...fxe6!
- threat
- 1.Qf3?
- threat
- 2.Rxd5#
- 2.Qd3#
- 2.Qe3#
- 1...Rxd2
- 2.Rxd5#
- 2.Qe3#
- 1...dxe4
- 2.Qxe4#
- 2.Qe3#
- 1...dxe5
- 2.Be3#
- 2.Qd3#
- 2.Qe3#
- 1...Sxf3!
- threat
- 1.Qf5?
- threat
- 2.Be3#
- 2.Rxd5#
- 1...dxe4
- 2.Rd5#
- 2.Qxe4#
- 1...dxe5
- 2.Be3#
- 2.Bxe5#
- 2.Qxe5#
- 1...gxf5!
- threat
- 1.Qe6?
- threat
- 2.Be3#
- 2.Rxd5#
- 2.Qxd5#
- 1...dxe4
- 2.Rd5#
- 2.Rxd6#
- 2.Qc4#
- 2.Qd5#
- 2.Qxd6#
- 1...dxe5
- 2.Qxd5#
- 2.Qxe5#
- 1...fxe6!
- threat
- 1.Qd7?
- threat
- 2.Qa7#
- 1...dxe4
- 2.Qxd6#
- 1...dxe5
- 2.Qxd5#
- 1...Ba3
- 2.dxc3#
- 1...Ra1!
- threat
- 1.Qg2?
- threat
- 2.Rxd5#
- 1...dxe4
- 2.Qxe4#
- 1...dxe5
- 2.Be3#
- 1...Sf3!
- threat
- 1.Qg3?
- threat
- 2.Be3#
- 2.Qd3#
- 2.Qe3#
- 1...Rxd2
- 2.Be3#
- 2.Qe3#
- 1...dxe4
- 2.Qe3#
- 1...dxe5
- 2.Qd3#
- 2.Qe3#
- 1...Sf3
- 2.Be3#
- 1...hxg3!
- threat
- 1.Qg5?
- threat
- 2.Be3#
- 1...dxe4
- 2.Rd5#
- 1...dxe5
- 2.Qxe5#
- 1...f5!
- threat
- 1.d3?
- threat
- 2.Rxd5#
- 1...dxe4
- 2.Rxd6#
- 1...dxe5
- 2.Be3#
- 1...Rxd3!
- threat
- 1.Bh2?
- Keys
- 1.Bg5!
- threat
- 2.Rxd5#
- 1...Kxe5
- 2.Bf6#
- 1...dxe4
- 2.Qxe4#
- 1...dxe5
- 2.Be3#
- threat
- 1.Bg5!
This anticipates 70928(2006)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(d);N_GUARD::P(A),XP(f)
- P(j);SBLOCK,XR(F)::B(D)
- Tries
- Try
- B(D);
- Threat
- DUALS(5)
- Vars
- P(i);OGATE,P_SPINP(i),XB(C)::QAR1(E),XP(i)
- S(c);::R1(F),XP(i)
- Refutation
- P(j);XR(F)
- Try
- B(D);
- Threat
- DUALS(5)
- Vars
- P(h);XB(D)::R1(F),XP(i)
- P(i);OGATE,P_SPINP(i),XB(C)::QAR1(E),XP(i)
- S(c);::R1(F),XP(i)
- Refutation
- P(j);XR(F)
- Try
- B(D);
- Threat
- R1(F),XP(i)
- Vars
- P(i);OGATE,P_SPINP(i),XB(C)::QAR1(E),XP(i)
- P(j);SBLOCK,XR(F)::B(D)
- Refutation
- K(g);S_FLIGHT,XR(F)
- Try
- R(F);
- Threat
- B(D)
- Vars
- P(i);OGATEB,SBLOCK,XB(C)::R(F),XP(j)
- Refutation
- P(l);XR(F)
- Try
- Q(E);
- Threat
- DUALS(3)
- Refutation
- S(c);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Refutation
- P(k);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(3)
- Refutation
- P(l);XQ(E)
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- P(i);OGATEB,P_SPINP(j),XB(C)::QAR2(E),XP(j)
- P(j);OGATE,P_SPINP(i),XR(F)::QAR1(E),XP(i)
- B(d);N_GUARD::P(A),XP(f)
- Refutation
- R(a);
- Try
- Q(E);
- Threat
- R1(F),XP(i)
- Vars
- P(i);OGATE,XB(C)::QAR1(E),XP(i)
- P(j);SBLOCK,XR(F)::B(D)
- Refutation
- S(c);
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- P(i);XB(C)::QAB1(E)
- S(c);::B(D)
- Refutation
- P(h);XQ(E)
- Try
- Q(E);
- Threat
- B(D)
- Vars
- P(i);SBLOCK,XB(C)::R1(F)
- P(j);OGATE,XR(F)::QAB1(E),XP(j)
- Refutation
- P(l);
- Try
- P(A);
- Threat
- R1(F),XP(i)
- Vars
- P(i);OGATEB,XB(C)::R(G),XP(j)
- P(j);SBLOCK,XR(F)::B(D)
- Refutation
- R(a);XP(A)
- Try
- Actual
- B(D);
- Threat
- R1(F),XP(i)
- Vars
- K(g);OGATEB,S_FLIGHT,XR(F)::B(D)
- P(i);OGATE,P_SPINP(i),XB(C)::QAR1(E),XP(i)
- P(j);SBLOCK,XR(F)::B(D)
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).