MESON Chess Problem Database
Problem Display
PID: 134344 (2NN2n1/2p5/B6r/2k4q/4P2p/1RP5/1P4P1/r2Q2bK w - - 0 1)
Mangalis, Laimons
1st HM., American Chess Bulletin, 1962
#2
10 + 8
| 56 | The Problemist | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.Qd5#
- 1...Qf3
- 2.Qd5#
- 1...Qg4
- 2.Qd5#
- 1...Qg6
- 2.Qd5#
- 1...Qe8
- 2.Qd5#
- 1...Qd5
- 2.Qxd5#
- 1...Ra2
- 2.Qxg1#
- 1...Ra3
- 2.Qxg1#
- 1...Ra5
- 2.Qxg1#
- 1...Rb6
- 2.Qxh5#
- 1...Rc6
- 2.Sb7#
- 2.Qxh5#
- 1...Bd4
- 2.cxd4#
- 1...c6
- 2.Sb7#
- 1...Qe2
- Tries
- 1.Se6+?
- 1...Kc6
- 2.Bb7#
- 1...Rxe6!
- 1...Kc6
- 1.Bf1?
- threat
- 2.Rb5#
- 1...Qe2
- 2.Qd5#
- 1...Qe8
- 2.Qd5#
- 1...Rb6
- 2.Qxh5#
- 1...c6
- 2.Sb7#
- 1...Ra5!
- threat
- 1.Be2?
- threat
- 2.Rb5#
- 1...Qxe2
- 2.Qd5#
- 1...Qe8
- 2.Qd5#
- 1...Ra5
- 2.Qxg1#
- 1...c6
- 2.Sb7#
- 1...Rb6!
- threat
- 1.Bd3?
- threat
- 2.Rb5#
- 1...Ra5
- 2.Qxg1#
- 1...Rb6
- 2.Qxh5#
- 1...c6
- 2.Sb7#
- 1...Qe8!
- threat
- 1.Ra3?
- threat
- 2.b4#
- 1...Rb1
- 2.Ra5#
- 1...Rb6
- 2.Qxh5#
- 1...Rxa6!
- threat
- 1.Rb4?
- threat
- 2.Rc4#
- 1...Raxa6
- 2.Qxg1#
- 1...Rhxa6
- 2.Qxh5#
- 1...Qe2
- 2.Qd5#
- 1...Qd5
- 2.Qxd5#
- 1...Ra4
- 2.Qxg1#
- 1...Qf7!
- threat
- 1.Rb6?
- threat
- 2.Sb7#
- 2.b4#
- 1...Rxb6
- 2.Qxh5#
- 1...cxb6
- 2.b4#
- 1...Qd5
- 2.Qxd5#
- 2.b4#
- 1...Rb1
- 2.Sb7#
- 1...Ra4
- 2.Sb7#
- 1...Rxa6!
- threat
- 1.Qxa1?
- threat
- 2.Qxg1#
- 2.Qa3#
- 2.Qa5#
- 1...Qd1
- 2.Qa3#
- 2.Qa5#
- 1...Qe2
- 2.Qa3#
- 1...Qf3
- 2.Qa3#
- 2.Qa5#
- 1...Qf7
- 2.Qa3#
- 2.Qa5#
- 1...Qe8
- 2.Qxg1#
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 2.Qa5#
- 1...Qe5
- 2.Qa3#
- 2.Qa5#
- 1...Qf5
- 2.Qa3#
- 2.Qa5#
- 1...Qg5
- 2.Qa3#
- 2.Qa5#
- 1...Rb6
- 2.Qxg1#
- 1...Rd6
- 2.Qa3#
- 2.Qa5#
- 1...Rf6
- 2.Qa3#
- 2.Qa5#
- 1...Bf2
- 2.Qa3#
- 2.Qa5#
- 1...Bh2
- 2.Qa3#
- 2.Qa5#
- 1...Be3
- 2.Qa3#
- 2.Qa5#
- 1...Bd4
- 2.Qa3#
- 2.Qa5#
- 1...Rxa6!
- threat
- 1.Qf1?
- threat
- 2.Rb5#
- 2.Qc4#
- 2.Qb5#
- 1...Raxa6
- 2.Rb5#
- 2.Qb5#
- 1...Rhxa6
- 2.Rb5#
- 2.Qb5#
- 1...Qe2
- 2.Qf5#
- 1...Qf7
- 2.Rb5#
- 2.Qb5#
- 1...Qe8
- 2.Qc4#
- 1...Qd5
- 2.Rb5#
- 2.Qb5#
- 1...Ra4
- 2.Rb5#
- 2.Qb5#
- 1...Ra5
- 2.Qc4#
- 2.Qxg1#
- 1...Rb6
- 2.Qc4#
- 1...Bf2
- 2.Rb5#
- 1...Bh2
- 2.Rb5#
- 1...Be3
- 2.Rb5#
- 1...Bd4
- 2.Rb5#
- 1...c6
- 2.Sb7#
- 2.Qc4#
- 1...Rxf1!
- threat
- 1.Se6+?
- Keys
- 1.Bb5!
- threat
- 2.Sb7#
- 1...Qd5
- 2.Qxd5#
- 1...Ra7
- 2.Qxg1#
- 1...Rb6
- 2.Qxh5#
- threat
- 1.Bb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(e);N_GUARD::QAR1(A)
- Q(e);N_GUARD,P_PINP(D)::QAR1(A)
- Q(e);N_GUARD::QAR1(A),XQ(e)
- R(a);N_GUARD::QAB(A),XB(b)
- R(f);N_GUARD::QAR(A),XQ(e)
- B(b);OGATE,P_PINQ(A)::P(F),XB(b)
- P(g);SBLOCK::S(J)
- Tries
- Try
- S(J);CHECK
- Vars
- K(d);P-FLIGHT::B(H)
- Refutation
- R(f);XS(J)
- Try
- B(H);
- Threat
- R1(E)
- Vars
- Q(e);N_GUARD::QAR1(A)
- R(f);N_GUARD::QAR(A),XQ(e)
- P(g);SBLOCK::S(J)
- Refutation
- R(a);
- Try
- B(H);
- Threat
- R1(E)
- Vars
- Q(e);N_GUARD,XB(H)::QAR1(A)
- Q(e);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAB(A),XB(b)
- P(g);SBLOCK::S(J)
- Refutation
- R(f);
- Try
- B(H);
- Threat
- R1(E)
- Vars
- R(a);N_GUARD::QAB(A),XB(b)
- R(f);N_GUARD::QAR(A),XQ(e)
- P(g);SBLOCK::S(J)
- Refutation
- Q(e);
- Try
- R(E);
- Threat
- P(C)
- Vars
- R(a);N_GUARD::R(E)
- R(f);N_GUARD::QAR(A),XQ(e)
- Refutation
- R(f);XB(H)
- Try
- R(E);
- Threat
- R1(E)
- Vars
- R(a);N_GUARD,XB(H)::QAB(A),XB(b)
- R(f);N_GUARD,XB(H)::QAR(A),XQ(e)
- Q(e);N_GUARD::QAR1(A)
- Q(e);N_GUARD::QAR1(A),XQ(e)
- R(a);N_GUARD::QAB(A),XB(b)
- Refutation
- Q(e);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD,XR(E)::QAR(A),XQ(e)
- P(g);XR(E)::P(C)
- R(a);::S(J)
- Refutation
- R(a);XB(H)
- Try
- Q(A);XR(a)
- Threat
- DUALS(3)
- Vars
- Q(e);::QAB(A)
- R(f);::QAB(A),XB(b)
- Refutation
- R(f);XB(H)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(e);N_GUARD::QAR(A)
- Q(e);::QAR1(A)
- R(f);::QAR1(A)
- B(b);P_PINQ(A)::R1(E)
- Refutation
- R(a);XQ(A)
- Try
- Actual
- B(H);
- Threat
- S(J)
- Vars
- Q(e);N_GUARD::QAR1(A),XQ(e)
- R(a);N_GUARD::QAB(A),XB(b)
- R(f);N_GUARD::QAR(A),XQ(e)
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