MESON Chess Problem Database
Problem Display
PID: 278688 (1Bqb4/2nBn3/8/3Rrp2/2prk1P1/Q2p1R1N/1N3K2/8 w - - 0 1)
Braude, LD
Kozlov, Aleksandr Ivanovich
Stella Polaris, 1975
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Rdxd5
- 2.Rf4#
- 1...Rexd5
- 2.Re3#
- 1...Sb5
- 2.Rxe5#
- 1...Scxd5
- 2.Sg5#
- 1...Sa6
- 2.Rxe5#
- 1...Se6
- 2.Rxe5#
- 1...Sa8
- 2.Rxe5#
- 1...Se8
- 2.Rxe5#
- 1...Rdxd5
- Tries
- 1.Sd1?
- threat
- 2.Sc3#
- 1...Kxd5
- 2.Sc3#
- 1...Rdxd5
- 2.Rf4#
- 1...Rexd5
- 2.Re3#
- 1...Scxd5
- 2.Sg5#
- 1...Sb5
- 2.Rxe5#
- 1...c3
- 2.Sxc3#
- 1...Sexd5!
- threat
- 1.Bc6?
- threat
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 1...Rdxd5
- 2.Rf4#
- 1...Rexd5
- 2.Re3#
- 1...Sexd5
- 2.Re3#
- 2.Rf4#
- 1...fxg4
- 2.Rf4#
- 1...Se6
- 2.Re3#
- 2.Rxe5#
- 1...Sg6
- 2.Re3#
- 1...Sg8
- 2.Re3#
- 2.Rf4#
- 1...f4
- 2.Rxf4#
- 1...Sxc6!
- threat
- 1.Qc5?
- threat
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxd4#
- 1...Qxd7
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Rxe5#
- 2.Qxd4#
- 1...Rdxd5
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Qe3#
- 1...Rexd5
- 2.Re3#
- 1...Scxd5
- 2.Sg5#
- 1...fxg4
- 2.Re3#
- 2.Rf4#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxd4#
- 1...Re6
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Rxd4#
- 2.Qxd4#
- 1...Sb5
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Rxe5#
- 1...Se6
- 2.Re3#
- 2.Rxe5#
- 1...Sc6
- 2.Re3#
- 2.Rf4#
- 1...Sg6
- 2.Re3#
- 2.Rxd4#
- 2.Qxd4#
- 1...Sg8
- 2.Re3#
- 2.Rf4#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxd4#
- 1...f4
- 2.Rxf4#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxd4#
- 1...Sexd5!
- threat
- 1.Qd6?
- threat
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxe5#
- 1...Rdxd5
- 2.Rf4#
- 1...Rexd5
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Qf4#
- 1...Scxd5
- 2.Sg5#
- 2.Qxe5#
- 1...fxg4
- 2.Re3#
- 2.Rf4#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxe5#
- 1...Re6
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Rxd4#
- 1...Sb5
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Rxe5#
- 2.Qxe5#
- 1...Se6
- 2.Re3#
- 2.Rxe5#
- 2.Qxe5#
- 1...Sc6
- 2.Re3#
- 2.Rf4#
- 1...Sg6
- 2.Re3#
- 2.Rxd4#
- 1...Sg8
- 2.Re3#
- 2.Rf4#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxe5#
- 1...f4
- 2.Rxf4#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxe5#
- 1...Sexd5!
- threat
- 1.Qa5?
- threat
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 2.Rxe5#
- 1...Rdxd5
- 2.Rf4#
- 1...Rexd5
- 2.Re3#
- 2.Qe1#
- 1...Scxd5
- 2.Sg5#
- 1...fxg4
- 2.Re3#
- 2.Rf4#
- 2.Rxe5#
- 1...Sb5
- 2.Rxe5#
- 1...Re6
- 2.Sg5#
- 2.Re3#
- 2.Rf4#
- 1...Se6
- 2.Re3#
- 2.Rxe5#
- 1...Sc6
- 2.Re3#
- 2.Rf4#
- 1...Sg6
- 2.Re3#
- 1...Sg8
- 2.Re3#
- 2.Rf4#
- 2.Rxe5#
- 1...f4
- 2.Rxf4#
- 2.Rxe5#
- 1...Sexd5!
- threat
- 1.Sd1?
- Keys
- 1.Sa4!
- threat
- 2.Sc3#
- 1...Kxd5
- 2.Sc3#
- 1...Rdxd5
- 2.Rf4#
- 1...Rexd5
- 2.Re3#
- 1...Scxd5
- 2.Sg5#
- 1...Sexd5
- 2.Sc5#
- 1...Sb5
- 2.Rxe5#
- 1...c3
- 2.Sxc3#
- threat
- 1.Sa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(c);SBLOCK,XR(G)::R1(D)
- R(e);SBLOCK,XR(G)::R1(D)
- S(g);::R1(G),XR(e)
- S(g);SBLOCK,XR(G)::S(E)
- Tries
- Try
- S(A);
- Threat
- S(A)
- Vars
- K(d);S_FLIGHT,XR(G)::S(A)
- R(c);SBLOCK,XR(G)::R1(D)
- R(e);SBLOCK,XR(G)::R1(D)
- S(g);SBLOCK,XR(G)::S(E)
- S(g);::R1(G),XR(e)
- P(b);::S(A),XP(b)
- Refutation
- S(h);XR(G)
- Try
- B(H);
- Threat
- DUALS(3)
- Vars
- R(c);P_SPINR(c),XR(G)::R1(D)
- R(e);P_SPINR(e),XR(G)::R1(D)
- P(f);XP(F)::R1(D)
- S(h);::R1(D)
- P(f);::R1(D),XP(f)
- Refutation
- S(h);XB(H)
- Try
- Q(C);
- Threat
- DUALS(6)
- Vars
- R(e);XR(G)::R1(D)
- S(g);XR(G)::S(E)
- Refutation
- S(h);XR(G)
- Try
- Q(C);
- Threat
- DUALS(6)
- Vars
- R(c);XR(G)::R1(D)
- Refutation
- S(h);XR(G)
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- R(c);XR(G)::R1(D)
- S(g);XR(G)::S(E)
- S(g);::R1(G),XR(e)
- S(h);::R1(D)
- Refutation
- S(h);XR(G)
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- K(d);S_FLIGHT,XR(G)::S(A)
- R(c);SBLOCK,XR(G)::R1(D)
- R(e);SBLOCK,XR(G)::R1(D)
- S(g);SBLOCK,XR(G)::S(E)
- S(h);SBLOCK,XR(G)::S(A)
- S(g);::R1(G),XR(e)
- P(b);::S(A),XP(b)
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