MESON Chess Problem Database
Problem Display
PID: 15588 (7K/1pp3Qn/3kN3/N2PR1P1/B7/3p2R1/1r5B/2q2b2 w - - 0 1)
Kopaev, Viacheslav Georgievich
1/2 Prize, Bulletin of the Central Chess Club of USSR, 1986
#2
10 + 8
| 3297 | FIDE Album (1986-1988) | 1995 |
| 4901 | Best Problems | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Sc4#
- 2.Qxc7#
- 1...Qe3
- 2.Sc4#
- 2.Qxc7#
- 1...Qf4
- 2.Qxc7#
- 1...Qxg5
- 2.Sc4#
- 2.Qxc7#
- 1...Qa1
- 2.Sc4#
- 2.Qxc7#
- 1...Qb1
- 2.Sc4#
- 2.Qxc7#
- 1...Qd1
- 2.Sc4#
- 2.Qxc7#
- 1...Qe1
- 2.Sc4#
- 2.Qxc7#
- 1...Qc4
- 2.Sxc4#
- 1...Ra2
- 2.Sxb7#
- 1...Rc2
- 2.Sxb7#
- 1...Rd2
- 2.Sxb7#
- 1...Re2
- 2.Sxb7#
- 1...Rf2
- 2.Sxb7#
- 1...Rg2
- 2.Sxb7#
- 1...Rxh2
- 2.Sxb7#
- 1...b5
- 2.Sb7#
- 1...b6
- 2.Sb7#
- 1...c5
- 2.Qc7#
- 1...c6
- 2.Qc7#
- 1...Qd2
- Tries
- 1.Sc6?
- threat
- 2.Qxc7#
- 2.Qe7#
- 1...Qxg5
- 2.Qxc7#
- 1...bxc6
- 2.Qxc7#
- 1...Qxc6!
- threat
- 1.Sc5?
- threat
- 2.Se4#
- 2.Qe7#
- 1...Qxg5
- 2.Se4#
- 1...Qxc5
- 2.Qe7#
- 1...Sxg5
- 2.Qe7#
- 1...Sf6
- 2.Qe7#
- 1...Qe3
- 2.Qe7#
- 1...Qf4
- 2.Qe7#
- 1...Qe1
- 2.Qe7#
- 1...Qc4
- 2.Qe7#
- 1...Re2
- 2.Saxb7#
- 2.Scxb7#
- 2.Qe7#
- 1...Rb4
- 2.Qe7#
- 1...Bg2
- 2.Qe7#
- 1...Kxc5!
- threat
- 1.Bc2?
- threat
- 2.Sc4#
- 2.Qxc7#
- 1...Rxc2
- 2.Sxb7#
- 1...dxc2
- 2.Qxc7#
- 1...Qf4
- 2.Qxc7#
- 1...Rb4
- 2.Qxc7#
- 1...d2
- 2.Qxc7#
- 1...b5
- 2.Sb7#
- 2.Qxc7#
- 1...c5
- 2.Sc4#
- 2.Qc7#
- 1...c6
- 2.Sc4#
- 2.Qc7#
- 1...Qxc2!
- threat
- 1.Rg2?
- threat
- 2.Qd7#
- 1...Qf4
- 2.Qxc7#
- 1...Qc6
- 2.Rf5#
- 1...Sf6
- 2.Qf8#
- 1...Sf8
- 2.Qxf8#
- 1...b5
- 2.Sb7#
- 1...c6
- 2.Qc7#
- 1...Rb5!
- threat
- 1.Rge3?
- threat
- 2.Qd7#
- 1...Rb5
- 2.Rf5#
- 1...Sf6
- 2.Qf8#
- 1...Sf8
- 2.Qxf8#
- 1...b5
- 2.Sb7#
- 1...c6
- 2.Qc7#
- 1...Qc6!
- threat
- 1.Rf5?
- threat
- 2.Qd7#
- 1...Qc6
- 2.Rg2#
- 1...Rb5
- 2.Re3#
- 1...Sf6
- 2.Qf8#
- 1...Sf8
- 2.Qxf8#
- 1...b5
- 2.Sb7#
- 1...c6
- 2.Qc7#
- 1...Qc3!
- threat
- 1.Sc6?
- Keys
- 1.Rxd3!
- threat
- 2.Qd7#
- 1...Rxh2
- 2.Sxb7#
- 1...Rb5
- 2.Ree3#
- 1...Qf4
- 2.Qxc7#
- 1...Qc6
- 2.Re2#
- 1...Sf6
- 2.Qf8#
- 1...Sf8
- 2.Qxf8#
- 1...b5
- 2.Sb7#
- 1...c6
- 2.Qc7#
- threat
- 1.Rxd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::QAB1(I),XP(g)
- Q(a);N_GUARD::S(D),XQ(a)
- R(c);N_GUARD::S(D),XP(f)
- R(c);N_GUARD,XB(A)::S(D),XP(f)
- P(f);S_CUTR(c)::S(D)
- P(g);S_CUTQ(a)::QAB1(I)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(G)::QAB1(I),XP(g)
- P(f);XS(D)::QAB1(I),XP(g)
- Refutation
- Q(a);XS(D)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(G)::S(H)
- Q(a);SBLOCK,XS(H)::QAB1(I)
- S(h);XP(G)::QAB1(I)
- S(h);::QAB1(I)
- Q(a);::QAB1(I)
- R(c);::QAB1(I)
- B(b);::QAB1(I)
- Refutation
- K(e);S_FLIGHT,XS(H)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,XB(C)::S(D),XP(f)
- P(d);XB(C)::QAB1(I),XP(g)
- Q(a);::QAB1(I),XP(g)
- R(c);::QAB1(I),XP(g)
- P(d);::QAB1(I),XP(g)
- Refutation
- Q(a);XB(C)
- Try
- R(B);
- Threat
- QAR1(I)
- Vars
- Q(a);N_GUARD::QAB1(I),XP(g)
- Q(a);N_GUARD::B(A)+R(F)
- S(h);N_GUARD::QAB(I)
- S(h);N_GUARD::QAB(I),XS(h)
- P(f);S_CUTR(c)::S(D)
- P(g);S_CUTQ(a)::QAB1(I)
- Refutation
- R(c);
- Try
- R(B);
- Threat
- QAR1(I)
- Vars
- R(c);N_GUARD::B(A)+R(F)
- S(h);N_GUARD::QAB(I)
- S(h);N_GUARD::QAB(I),XS(h)
- P(f);S_CUTR(c)::S(D)
- P(g);S_CUTQ(a)::QAB1(I)
- Refutation
- Q(a);
- Try
- R(F);
- Threat
- QAR1(I)
- Vars
- Q(a);N_GUARD::B(A)+R(B)
- R(c);N_GUARD::B(A)+R(B)
- S(h);N_GUARD::QAB(I)
- S(h);N_GUARD::QAB(I),XS(h)
- P(f);S_CUTR(c)::S(D)
- P(g);S_CUTQ(a)::QAB1(I)
- Refutation
- Q(a);P_PINQ(I)
- Try
- Actual
- R(B);XP(d)
- Threat
- QAR1(I)
- Vars
- R(c);N_GUARD,XB(A)::S(D),XP(f)
- R(c);N_GUARD::B(A)+R(F)
- Q(a);N_GUARD::QAB1(I),XP(g)
- Q(a);N_GUARD::B(A)+R(F)
- S(h);N_GUARD::QAB(I)
- S(h);N_GUARD::QAB(I),XS(h)
- P(f);S_CUTR(c)::S(D)
- P(g);S_CUTQ(a)::QAB1(I)
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