MESON Chess Problem Database
Problem Display
PID: 268748 (2b1r2q/np1PNPPp/3R2p1/BQPpk3/r2Np1R1/8/3p4/1B1K4 w - - 0 1)
Murashev, Pavel Aleksandrovich
Slesarenko, Anatoly Vasilevich
Prize, ASIGC, 2020
#2
12 + 12
| 6490 | yacpdb | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Kxd4
- 2.Rxe4#
- 1...Rxe7
- 2.gxh8Q#
- 2.gxh8B#
- 1...e3
- 2.Sf3#
- 2.Re6#
- 1...Kxd4
- Tries
- 1.Bc3?
- threat
- 2.Sf3#
- 2.Sdc6#
- 2.Re6#
- 1...Rxe7
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxd7
- 2.Sf3#
- 2.Sdc6#
- 1...Ra6
- 2.Sf3#
- 2.Sdc6#
- 1...Sc6
- 2.Sf3#
- 2.Sdxc6#
- 2.Re6#
- 1...Rxd4!
- threat
- 1.Qf1?
- threat
- 2.Rxd5#
- 2.Qf6#
- 1...Qxg7
- 2.Rxd5#
- 1...Rxd4
- 2.Rg5#
- 2.Qf4#
- 2.Qf6#
- 1...Rxe7
- 2.Qf6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Kxd4!
- threat
- 1.Qe2?
- threat
- 2.Sf3#
- 1...Kxd4
- 2.Rxd5#
- 1...Rxd4
- 2.Qh2#
- 1...Rxe7
- 2.gxh8Q#
- 2.gxh8B#
- 1...Ra3!
- threat
- 1.Qd3?
- threat
- 2.Re6#
- 1...Rxd4
- 2.Qg3#
- 1...Rxe7
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxd7!
- threat
- 1.Qxa4?
- threat
- 2.Re6#
- 1...Rxe7
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxd7!
- threat
- 1.Qc4?
- threat
- 2.Re6#
- 2.Qxd5#
- 1...Rxe7
- 2.Qxd5#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxd7
- 2.Qxd5#
- 1...dxc4
- 2.Rxe4#
- 1...Rxc4!
- threat
- 1.Qb2?
- threat
- 2.Sf3#
- 2.Sdc6#
- 2.Re6#
- 1...Rxe7
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxd7
- 2.Sf3#
- 2.Sdc6#
- 1...Sc6
- 2.Sf3#
- 2.Sdxc6#
- 2.Re6#
- 1...Rxd4!
- threat
- 1.Qb3?
- threat
- 2.Qxd5#
- 1...Kxd4
- 2.Rxd5#
- 2.Qc3#
- 1...Rxd4
- 2.Qg3#
- 1...Rc4!
- threat
- 1.Qb6?
- threat
- 2.Rxd5#
- 1...Kxd4
- 2.Rxe4#
- 1...Rxd4
- 2.Re6#
- 1...Rxe7
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sc6!
- threat
- 1.fxe8Q?
- threat
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Kxd4
- 2.Rxe4#
- 1...Qxg7
- 2.Sec6#
- 1...Rxd4
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rxa5
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxd7
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sxb5
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qf8
- 2.Sec6#
- 1...Qg8
- 2.Sec6#
- 1...Ra1
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Ra2
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Ra3
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rb4
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rc4
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sc6
- 2.Sexc6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...e3
- 2.Sf3#
- 2.Sec6#
- 2.Sxg6#
- 2.Sg8#
- 2.Re6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...g5
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...b6
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...h5
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...h6
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qxe8!
- threat
- 1.fxe8R?
- threat
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Kxd4
- 2.Rxe4#
- 1...Qxg7
- 2.Sec6#
- 1...Rxd4
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rxa5
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxd7
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sxb5
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qf8
- 2.Sec6#
- 1...Qg8
- 2.Sec6#
- 1...Ra1
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Ra2
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Ra3
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rb4
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rc4
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sc6
- 2.Sexc6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...e3
- 2.Sf3#
- 2.Sec6#
- 2.Sxg6#
- 2.Sg8#
- 2.Re6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...g5
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...b6
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...h5
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...h6
- 2.Sec6#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qxe8!
- threat
- 1.Bc3?
- Keys
- 1.Sxd5!
- threat
- 2.Rxe4#
- 1...Kxd4
- 2.Bc3#
- 1...Rxd4
- 2.Rg5#
- 1...e3
- 2.Sf3#
- 2.Re4#
- threat
- 1.Sxd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(e);P_SPINP(c),S_CUTP(d),S_FLIGHT,XS(C)::R1(D),XP(c)
- R(k);N_GUARD,XS(J)::PXQ(l)=Q
- Tries
- Try
- B(E);
- Threat
- DUALS(3)
- Vars
- R(k);N_GUARD,XS(J)::PXQ(l)=Q
- Refutation
- R(b);P_SPINR(b),XS(C)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(l);XP(L)::R1(H),XP(d)
- Refutation
- K(e);P_SPINP(c),S_FLIGHT,XS(C)
- Try
- Q(F);P_PINP(c)
- Threat
- S(C)
- Vars
- K(e);N_GUARD,S_FLIGHT,XS(C)::R1(H),XP(d)
- R(b);SBLOCK,XS(C)::QAB(F)
- R(k);N_GUARD,XS(J)::PXQ(l)=Q
- Refutation
- R(b);
- Try
- Q(F);
- Threat
- R1(H)
- Vars
- R(b);SBLOCK,XS(C)::QAB(F)
- R(k);N_GUARD,XS(J)::PXQ(l)=Q
- Refutation
- B(j);XP(I)
- Try
- Q(F);XR(b)
- Threat
- R1(H)
- Vars
- R(k);N_GUARD,XS(J)::PXQ(l)=Q
- Refutation
- B(j);XP(I)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- B(j);XP(I)::QAR1(F),XP(d)
- P(d);N_GUARD,XQ(F)::R1(D),XP(c)
- Refutation
- R(b);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- R(k);N_GUARD,XS(J)::PXQ(l)=Q
- Refutation
- R(b);P_SPINR(b),XS(C)
- Try
- Q(F);
- Threat
- QAR1(F),XP(d)
- Vars
- R(b);SBLOCK,XS(C)::QAB(F)
- Refutation
- R(b);
- Try
- Q(F);
- Threat
- R1(H),XP(d)
- Vars
- K(e);P_SPINP(c),S_CUTP(d),S_FLIGHT,XS(C)::R1(D),XP(c)
- R(b);SBLOCK,XS(C)::R1(H)
- R(k);N_GUARD,XS(J)::PXQ(l)=Q
- Refutation
- S(g);
- Try
- P(K);XR(k)
- Threat
- DUALS(3)
- Vars
- K(e);P_SPINP(c),S_CUTP(d),S_FLIGHT,XS(C)::R1(D),XP(c)
- Q(l);XP(L)::QAR(K)+S(J),DCHECK
- R(b);SBLOCK,XS(C)::PXQ(l)=Q
- Q(l);::QAR(K)+S(J),DCHECK
- Refutation
- Q(l);XQ(K)
- Try
- P(K);XR(k)
- Threat
- DUALS(3)
- Vars
- K(e);P_SPINP(c),S_CUTP(d),S_FLIGHT,XS(C)::R1(D),XP(c)
- Q(l);XP(L)::R(K)+S(J),DCHECK
- R(b);SBLOCK,XS(C)::PXQ(l)=Q
- Q(l);::R(K)+S(J),DCHECK
- Refutation
- Q(l);XR(K)
- Try
- Actual
- S(J);XP(d)
- Threat
- R1(D),XP(c)
- Vars
- K(e);OGATEB,P_SPINP(c),S_FLIGHT,XS(C)::B(E)
- R(b);SBLOCK,XS(C)::R(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).