MESON Chess Problem Database
Problem Display
PID: 86476 (n3R3/2r1bK1B/5R1N/3pk1P1/3N4/2P3q1/1Q6/4r2n w - - 0 1)
Archakov, Viktor
Melnichenko, Viktor Oleksandrovich
Chess Life & Review, 1988
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Sg4#
- 1...Qh2
- 2.Sf3#
- 2.Sg4#
- 1...Qh4
- 2.Sf3#
- 1...Qg1
- 2.Sf3#
- 1...Qxc3
- 2.Sf3#
- 1...Qd3
- 2.Sg4#
- 1...Qe3
- 2.Sg4#
- 1...Qf3
- 2.Sxf3#
- 1...Qg4
- 2.Sxg4#
- 1...Qxg5
- 2.Sf3#
- 1...Rxc3
- 2.Sc6#
- 1...Rc4
- 2.Rxe7#
- 1...Rc5
- 2.Rxe7#
- 1...Rc6
- 2.Sxc6#
- 1...Ra7
- 2.Sc6#
- 1...Rb7
- 2.Sc6#
- 1...Rd7
- 2.Sc6#
- 1...Rc8
- 2.Rxe7#
- 1...Qf2
- Tries
- 1.Kg7?
- threat
- 2.Sf7#
- 1...Qxc3
- 2.Sf3#
- 1...Rxc3
- 2.Sc6#
- 1...Qxg5+!
- threat
- 1.Kg8?
- threat
- 2.Sf7#
- 1...Qxc3
- 2.Sf3#
- 1...Rxc3
- 2.Sc6#
- 1...Qxg5+!
- threat
- 1.Qe2+?
- 1...Qe3
- 2.Sf3#
- 2.Sg4#
- 1...Rxe2!
- 1...Qe3
- 1.Qf2?
- threat
- 2.Re6#
- 2.Qf5#
- 1...Qxf2
- 2.Sg4#
- 1...Qxc3
- 2.Sg4#
- 2.Re6#
- 2.Qf4#
- 1...Qxg5
- 2.Sf3#
- 2.Re6#
- 1...Rxc3
- 2.Re6#
- 2.Rxe7#
- 1...Qf4
- 2.Qxf4#
- 1...Qd3
- 2.Sg4#
- 2.Re6#
- 2.Qf4#
- 1...Qf3
- 2.Sxf3#
- 1...Qh3
- 2.Qf4#
- 1...Qg4
- 2.Sxg4#
- 1...Rf1
- 2.Re6#
- 1...Rc6
- 2.Sxc6#
- 2.Qf5#
- 1...Sxf2!
- threat
- 1.Qh2?
- threat
- 2.Sf3#
- 2.Sg4#
- 1...Rf1
- 2.Sg4#
- 1...Re3
- 2.Sg4#
- 1...Re4
- 2.Sf3#
- 1...Sf2
- 2.Sf3#
- 2.Qxg3#
- 1...Rxc3!
- threat
- 1.Qb6?
- threat
- 2.Qd6#
- 2.Qe6#
- 1...Qxc3
- 2.Sg4#
- 1...Rxc3
- 2.Rxe7#
- 1...Qh3
- 2.Qd6#
- 1...Qg4
- 2.Sxg4#
- 2.Qd6#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 2.Qe6#
- 1...Sxb6!
- threat
- 1.Qb8?
- threat
- 2.Sc6#
- 2.Rxe7#
- 1...Qh3
- 2.Sc6#
- 1...Qg4
- 2.Sc6#
- 2.Sxg4#
- 1...Qxc3!
- threat
- 1.c4?
- threat
- 2.Sf3#
- 2.Sc6#
- 1...Qc3
- 2.Sf3#
- 1...Qf3
- 2.Sxf3#
- 2.Sc6#
- 1...Rc6
- 2.Sf3#
- 2.Sxc6#
- 1...dxc4!
- threat
- 1.Kg7?
- Keys
- 1.Qb4!
- threat
- 2.Qd6#
- 1...Qxc3
- 2.Sg4#
- 1...Rxc3
- 2.Rxe7#
- 1...Rc5
- 2.Rxe7#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- Q(c);N_GUARD,P_PINR(E)::S(F)
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD,XP(B)::S(C)
- Q(c);N_GUARD::S(F)
- Q(c);N_GUARD,P_PINR(E)::S(C),XQ(c)
- Q(c);N_GUARD::S(F),XQ(c)
- Q(c);N_GUARD,XP(D)::S(C)
- R(f);N_GUARD,XP(B)::S(C)
- R(f);N_GUARD::R(I),XB(g)
- R(f);N_GUARD::S(C),XR(f)
- R(f);N_GUARD::S(C)
- Tries
- Try
- K(G);P-FLIGHT,P_SPINP(D)
- Threat
- S(F)
- Vars
- Q(c);N_GUARD,N_PINP(D),XP(B)::S(C)
- R(f);N_GUARD,XP(B)::S(C)
- Refutation
- Q(c);CHECK,XP(D)
- Try
- K(G);P_SPINP(D),S_FLIGHT
- Threat
- S(F)
- Vars
- Q(c);N_GUARD,N_PINP(D),XP(B)::S(C)
- R(f);N_GUARD,XP(B)::S(C)
- Refutation
- Q(c);CHECK,XP(D)
- Try
- Q(A);CHECK
- Refutation
- R(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,P_PINR(E),XQ(A)::S(F)
- Q(c);N_GUARD,P_PINR(E)::QAB1(A),XQ(c)
- Q(c);N_GUARD,P_PINR(E)::S(C),XQ(c)
- Q(c);N_GUARD::QAB1(A)
- Q(c);N_GUARD::S(F),XQ(c)
- R(a);::R1(E)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);P_PINQ(c)
- Threat
- DUALS(2)
- Vars
- R(a);P_PINR(E)::S(F)
- R(a);::S(F)
- R(a);::S(C)
- Refutation
- R(f);XP(B)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XP(B)::S(F)
- R(f);N_GUARD,XP(B)::R(I),XB(g)
- Q(c);::QAB1(A)
- R(f);N_GUARD::S(C),XR(f)
- Refutation
- S(h);XQ(A)
- Try
- Q(A);P_PINR(f)
- Threat
- DUALS(2)
- Vars
- Q(c);::S(C)
- Refutation
- Q(c);XP(B)
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- Q(c);::S(C)
- Refutation
- P(d);XP(B)
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(c);N_GUARD,XP(B)::S(F)
- R(f);N_GUARD,XP(B)::R(I),XB(g)
- R(f);N_GUARD::R(I),XB(g)
- R(f);N_GUARD::S(C),XR(f)
- R(f);N_GUARD::S(C)
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