MESON Chess Problem Database
Problem Display
PID: 7330 (5R1N/1Bb3N1/6R1/q3k2p/1PPp2b1/8/6QK/4r2n w - - 0 1)
Segers, Marcel
Problemas, 1999
#2
9 + 8
| 1101 | BCSC Final | 2012-2013 |
| 15 | British Chess Magazine | 2013 |
| 56 | The Problemist | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qxb4
- 2.Qd5#
- 1...Qb6
- 2.Qd5#
- 1...Qa1
- 2.Qd5#
- 1...Qa3
- 2.Qd5#
- 1...Qa4
- 2.Qd5#
- 1...Qd5
- 2.Qxd5#
- 1...Qa6
- 2.Qd5#
- 1...Qa7
- 2.Qd5#
- 1...Qa8
- 2.Qd5#
- 1...Ra1
- 2.Qe4#
- 1...Rb1
- 2.Qe4#
- 1...Rc1
- 2.Qe4#
- 1...Rd1
- 2.Qe4#
- 1...Rf1
- 2.Qe4#
- 1...Rg1
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Bd1
- 2.Re6#
- 2.Rf5#
- 2.Qg5#
- 1...Be2
- 2.Re6#
- 2.Rf5#
- 2.Qe4#
- 2.Qg5#
- 1...Bf3
- 2.Re6#
- 2.Rf5#
- 2.Qg5#
- 1...Bf5
- 2.Rxf5#
- 1...Be6
- 2.Rxe6#
- 1...Sf2
- 2.Qg3#
- 1...Sg3
- 2.Qxg3#
- 1...d3
- 2.Qb2#
- 1...Qxb4
- Tries
- 1.Ra6?
- threat
- 2.Sg6#
- 1...Qxa6
- 2.Qd5#
- 1...Qb6
- 2.Qd5#
- 1...Bf5
- 2.Rxf5#
- 1...d3
- 2.Qb2#
- 1...Bb6!
- threat
- 1.Rb6?
- threat
- 2.Sg6#
- 1...Qxb6
- 2.Qd5#
- 1...Bf5
- 2.Rxf5#
- 1...d3
- 2.Qb2#
- 1...Bxb6!
- threat
- 1.Rc6?
- threat
- 2.Sg6#
- 1...Bf3
- 2.Re6#
- 1...Bf5
- 2.Rxf5#
- 1...d3!
- threat
- 1.Rgf6?
- threat
- 2.Sg6#
- 1...Be6
- 2.Rxe6#
- 1...d3
- 2.Qb2#
- 1...Bf5!
- threat
- 1.Rf2?
- threat
- 2.Sf7#
- 1...Sxf2
- 2.Qg3#
- 1...Bf3
- 2.Qg5#
- 1...Be6
- 2.Rxe6#
- 1...Qd5
- 2.Qxd5#
- 1...d3!
- threat
- 1.Rf3?
- threat
- 2.Sf7#
- 1...Bxf3
- 2.Qg5#
- 1...Be6
- 2.Rxe6#
- 1...d3
- 2.Qb2#
- 1...Qd5!
- threat
- 1.Rff6?
- threat
- 2.Sf7#
- 1...Bf5
- 2.Rxf5#
- 1...d3
- 2.Qb2#
- 1...Qd5
- 2.Qxd5#
- 1...Be6!
- threat
- 1.Qe2+?
- 1...Bxe2
- 2.Re6#
- 2.Rf5#
- 1...Rxe2+!
- 1...Bxe2
- 1.Qf2?
- threat
- 2.Sf7#
- 2.Qf4#
- 2.Qf6#
- 1...Qd5
- 2.Qf4#
- 1...Be6
- 2.Rxe6#
- 2.Qf4#
- 1...Qa2
- 2.Sf7#
- 1...Qb6
- 2.Sf7#
- 2.Qf4#
- 1...Qa6
- 2.Sf7#
- 2.Qf4#
- 1...Rf1
- 2.Sf7#
- 1...Re2
- 2.Sf7#
- 1...Re4
- 2.Sf7#
- 2.Qf6#
- 1...Bf3
- 2.Re6#
- 2.Rf5#
- 1...Bf5
- 2.Sf7#
- 2.Rxf5#
- 2.Qxf5#
- 1...Bd8
- 2.Sf7#
- 2.Qf4#
- 1...Sxf2!
- threat
- 1.Qxg4?
- threat
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Re8#
- 2.Qf5#
- 2.Qxh5#
- 2.Qe6#
- 2.Qf4#
- 2.Qg5#
- 1...Re2+
- 2.Qxe2#
- 1...Qxb4
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Qf5#
- 2.Qxh5#
- 2.Qe6#
- 2.Qf4#
- 2.Qg5#
- 1...hxg4
- 2.Re6#
- 2.Rf5#
- 1...Qb6
- 2.Sf7#
- 2.Rf5#
- 2.Qf5#
- 2.Qxh5#
- 2.Qf4#
- 2.Qg5#
- 1...Qa4
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Qf5#
- 2.Qxh5#
- 2.Qe6#
- 2.Qf4#
- 2.Qg5#
- 1...Qb5
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Qf5#
- 2.Qxh5#
- 2.Qe6#
- 2.Qf4#
- 2.Qg5#
- 1...Qc5
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Qf5#
- 2.Qxh5#
- 2.Qe6#
- 2.Qf4#
- 2.Qg5#
- 1...Qd5
- 2.Rf5#
- 2.Qf5#
- 2.Qf4#
- 1...Qa6
- 2.Sf7#
- 2.Rf5#
- 2.Qf5#
- 2.Qxh5#
- 2.Qf4#
- 2.Qg5#
- 1...Qa8
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Qf5#
- 2.Qxh5#
- 2.Qe6#
- 2.Qf4#
- 2.Qg5#
- 1...Rf1
- 2.Re6#
- 2.Re8#
- 2.Qe2#
- 2.Qe6#
- 2.Qe4#
- 1...Rg1
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Re8#
- 2.Qe2#
- 2.Qf5#
- 2.Qe6#
- 2.Qe4#
- 2.Qf4#
- 1...Re4
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Re8#
- 2.Qf5#
- 2.Qxh5#
- 2.Qe6#
- 2.Qxe4#
- 2.Qg5#
- 1...Bd6
- 2.Sf7#
- 2.Rg5#
- 2.Re6#
- 2.Rf5#
- 2.Qf5#
- 2.Qxh5#
- 2.Qe6#
- 2.Qf4#
- 2.Qg5#
- 1...Bd8
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Qf5#
- 2.Qe6#
- 2.Qf4#
- 1...Sg3
- 2.Sf7#
- 2.Re6#
- 2.Re8#
- 2.Qe6#
- 2.Qxg3#
- 2.Qf4#
- 1...d3
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Re8#
- 2.Qf4#
- 1...h4
- 2.Sf7#
- 2.Re6#
- 2.Rf5#
- 2.Re8#
- 2.Qf5#
- 2.Qh5#
- 2.Qe6#
- 2.Qf4#
- 2.Qg5#
- 1...Qa2+!
- threat
- 1.bxa5?
- threat
- 2.Qd5#
- 1...Bf5
- 2.Rxf5#
- 1...Be6
- 2.Rxe6#
- 1...Re4
- 2.Qxe4#
- 1...Bf3
- 2.Re6#
- 2.Rf5#
- 2.Qg5#
- 1...Re2!
- threat
- 1.Ra6?
- Keys
- 1.Rf1!
- threat
- 2.Sf7#
- 1...Rxf1
- 2.Qe4#
- 1...Bf3
- 2.Qg5#
- 1...Be6
- 2.Rxe6#
- 1...Sf2
- 2.Qg3#
- 1...d3
- 2.Qb2#
- 1...Qd5
- 2.Qxd5#
- threat
- 1.Rf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 16
- Sets
- Q(e);N_GUARD,XP(C)::QAR1(A)
- Q(e);N_GUARD::QAR1(A)
- Q(e);N_GUARD::QAR1(A),XQ(e)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- B(d);N_GUARD::R1(H),XB(d)
- B(d);N_GUARD::R1(E),XB(d)
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB(A),XS(b)
- P(c);OGATEB::QAB(A)
- Tries
- Try
- R(E);
- Threat
- S(I)
- Vars
- Q(e);N_GUARD,XR(E)::QAR1(A)
- Q(e);N_GUARD::QAR1(A)
- B(d);N_GUARD::R1(H),XB(d)
- P(c);OGATEB::QAB(A)
- Refutation
- B(h);
- Try
- R(E);
- Threat
- S(I)
- Vars
- Q(e);N_GUARD,XR(E)::QAR1(A)
- B(d);N_GUARD::R1(H),XB(d)
- P(c);OGATEB::QAB(A)
- Refutation
- B(h);XR(E)
- Try
- R(E);
- Threat
- S(I)
- Vars
- B(d);N_GUARD::R1(E)
- B(d);N_GUARD::R1(H),XB(d)
- Refutation
- P(c);
- Try
- R(E);
- Threat
- S(I)
- Vars
- B(d);N_GUARD::R1(E),XB(d)
- P(c);OGATEB::QAB(A)
- Refutation
- B(d);
- Try
- R(H);
- Threat
- S(I)
- Vars
- S(b);N_GUARD,XR(H)::QAB(A)
- B(d);OGATE::QAR2(A)
- B(d);N_GUARD::R1(E),XB(d)
- Q(e);N_GUARD::QAR1(A),XQ(e)
- Refutation
- P(c);
- Try
- R(H);
- Threat
- S(I)
- Vars
- B(d);OGATE,XR(H)::QAR2(A)
- B(d);N_GUARD::R1(E),XB(d)
- P(c);OGATEB::QAB(A)
- Refutation
- Q(e);
- Try
- R(H);
- Threat
- S(I)
- Vars
- B(d);N_GUARD::R1(H),XB(d)
- P(c);OGATEB::QAB(A)
- Q(e);N_GUARD::QAR1(A),XQ(e)
- Refutation
- B(d);
- Try
- Q(A);CHECK
- Refutation
- R(a);CHECK,XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(e);::QAB1(A)
- Q(e);P_PINQ(A)::S(I)
- R(a);::S(I)
- R(a);P_PINQ(A)::S(I)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);XB(d)
- Threat
- DUALS(9)
- Vars
- R(a);CHECK,N_GUARD::QAR(A),XR(a)
- Refutation
- Q(e);CHECK
- Try
- P(C);XQ(e)
- Threat
- QAR1(A)
- Vars
- B(d);N_GUARD::R1(H),XB(d)
- B(d);N_GUARD::R1(E),XB(d)
- R(a);N_GUARD::QAR1(A),XR(a)
- Refutation
- R(a);P_PINQ(A)
- Try
- Actual
- R(H);
- Threat
- S(I)
- Vars
- R(a);N_GUARD,XR(H)::QAR1(A)
- B(d);OGATE::QAR2(A)
- B(d);N_GUARD::R1(E),XB(d)
- S(b);N_GUARD::QAB(A)
- P(c);OGATEB::QAB(A)
- Q(e);N_GUARD::QAR1(A),XQ(e)
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