MESON Chess Problem Database
Problem Display
PID: 273253 (2KbN3/4N2p/1pQ5/3Pkp2/7R/1qr3P1/5BB1/3r4 w - - 0 1)
Rossomakho, Yakov V
10th HM., TW-25 JT, 1993
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Bd4#
- 1...Rb1
- 2.Bd4#
- 1...Rdc1
- 2.Bd4#
- 1...Re1
- 2.Bd4#
- 1...Rf1
- 2.Bd4#
- 1...Rg1
- 2.Bd4#
- 1...Rh1
- 2.Bd4#
- 1...Rd4
- 2.Bxd4#
- 1...Rd3
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Re3
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Rf3
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Rxg3
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Rxc6+
- 2.Sxc6#
- 1...Bc7
- 2.Qe6#
- 2.Qf6#
- 1...f4
- 2.Rh5#
- 2.gxf4#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Ra1
- Tries
- 1.Kb7?
- threat
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Rxd5
- 2.Qf6#
- 1...Rxc6
- 2.Sxc6#
- 1...Bxe7
- 2.Qe6#
- 1...Qa3
- 2.Qe6#
- 2.Qf6#
- 1...Qb4
- 2.Qe6#
- 2.Qf6#
- 1...Bc7
- 2.Qe6#
- 2.Qf6#
- 1...Qxd5!
- threat
- 1.Kb8?
- threat
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Qxd5
- 2.Qf6#
- 1...Rxd5
- 2.Qf6#
- 1...Rxc6
- 2.Sxc6#
- 1...Bxe7
- 2.Qe6#
- 1...Qa3
- 2.Qe6#
- 2.Qf6#
- 1...Qb4
- 2.Qe6#
- 2.Qf6#
- 1...Bc7+!
- threat
- 1.Bc5?
- threat
- 2.Bd6#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Qxd5
- 2.Qf6#
- 1...Rxd5
- 2.Qf6#
- 1...Bxe7
- 2.Qe6#
- 1...bxc5
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Qa3
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Qb4
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Bc7
- 2.Qe6#
- 2.Qf6#
- 2.Qxc7#
- 1...f4
- 2.Rh5#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 2.gxf4#
- 1...Rxc5!
- threat
- 1.Rh6?
- threat
- 2.Re6#
- 1...Rxc6+
- 2.Sxc6#
- 1...Rxg3
- 2.Qd6#
- 1...Re3
- 2.Qf6#
- 1...Qxd5!
- threat
- 1.Qxc3+?
- 1...Rd4
- 2.Sc6#
- 2.Bxd4#
- 2.Qxd4#
- 1...Qxc3+!
- 1...Rd4
- 1.Kb7?
- Keys
- 1.Rxh7!
- threat
- 2.Sg6#
- 1...Rxc6+
- 2.Sxc6#
- 1...Rxg3
- 2.Qd6#
- 1...Bxe7
- 2.Rxe7#
- 1...Re3
- 2.Qf6#
- 1...Rf3
- 2.Qe6#
- 1...f4
- 2.Rh5#
- threat
- 1.Rxh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 10
- Sets
- R(a);N_GUARD::B(A)
- R(a);N_GUARD::B(A),XR(a)
- R(c);CHECK,XQ(F)::S(G),XR(c)
- P(g);N_GUARD::S(G)
- Tries
- Try
- K(H);N_SPINQ(F),S_FLIGHT
- Threat
- DUALS(3)
- Vars
- R(a);XP(E)::QAB1(F)
- R(c);XQ(F)::S(G),XR(c)
- B(h);XS(G)::QAR1(F)
- Refutation
- Q(b);P_PINQ(F),XP(E)
- Try
- K(H);N_SPINQ(F),P-FLIGHT
- Threat
- DUALS(3)
- Vars
- Q(b);XP(E)::QAB1(F)
- R(a);XP(E)::QAB1(F)
- R(c);XQ(F)::S(G),XR(c)
- B(h);XS(G)::QAR1(F)
- Refutation
- B(h);CHECK
- Try
- B(A);N_SPINQ(F)
- Threat
- DUALS(4)
- Vars
- Q(b);XP(E)::QAB1(F)
- R(a);XP(E)::QAB1(F)
- B(h);XS(G)::QAR1(F)
- Refutation
- R(c);P_PINQ(F),XB(A)
- Try
- R(D);
- Threat
- R1(D)
- Vars
- R(c);CHECK,XQ(F)::S(G),XR(c)
- R(c);N_PINQ(F),XP(C)::QAB1(F)
- R(c);N_PINQ(F)::QAB1(F)
- Refutation
- Q(b);XP(E)
- Try
- Q(F);CHECK,N_SPINQ(F),XR(c)
- Refutation
- Q(b);CHECK,XQ(F)
- Try
- Actual
- R(D);XP(g)
- Threat
- S(G)
- Vars
- R(c);CHECK,XQ(F)::S(G),XR(c)
- R(c);N_PINQ(F),XP(C)::QAB1(F)
- B(h);OGATE,XS(G)::R(D),XB(h)
- R(c);N_PINQ(F)::QAB1(F)
- R(c);N_PINQ(F)::QAR1(F)
- P(e);OGATEB::R(D)
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