MESON Chess Problem Database
Problem Display
PID: 6827 (3rb1r1/b1Pn1kPN/2p3pP/q7/1BR1p1B1/5n1N/8/3Q3K w - - 0 1)
Baev, Georgy S
Loshinski, Lev Ilich
1st Prize, Vecherni Moskva, 1933
#2
10 + 11
| 81 | Chess | 1944 |
| 5862 | An ABC of Chess Problems | 1970 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
| 4393 | Uralski Problemist | 2004 |
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.cxd8S#
- 1...Qa2
- 2.cxd8S#
- 1...Qa3
- 2.cxd8S#
- 1...Qa4
- 2.cxd8S#
- 1...Qb5
- 2.cxd8S#
- 1...Qd5
- 2.cxd8S#
- 1...Qe5
- 2.cxd8S#
- 1...Qf5
- 2.cxd8S#
- 1...Qh5
- 2.cxd8S#
- 1...Qa6
- 2.cxd8S#
- 1...Sfe5
- 2.S3g5#
- 1...Sb6
- 2.cxd8S#
- 1...Qa1
- Tries
- 1.Qxf3+?
- 1...Qf5
- 2.S3g5#
- 2.cxd8S#
- 1...Sf6
- 2.Qxf6#
- 1...exf3!
- 1...Qf5
- 1.Qd5+?
- 1...Qxd5
- 2.cxd8S#
- 1...cxd5!
- 1...Qxd5
- 1.Qd6?
- threat
- 2.Be6#
- 2.Qe7#
- 2.Qe6#
- 1...Qxb4
- 2.Be6#
- 2.Qe6#
- 2.cxd8S#
- 1...Rxg7
- 2.Be6#
- 2.Qe6#
- 1...Rf8
- 2.Be6#
- 2.Qe6#
- 1...Rh8
- 2.Be6#
- 2.Qe6#
- 1...Qc5
- 2.Be6#
- 2.Qe6#
- 2.cxd8S#
- 1...Qd5
- 2.Qe7#
- 2.cxd8S#
- 1...Qe5
- 2.cxd8S#
- 1...Qf5
- 2.Qe7#
- 2.cxd8S#
- 1...Qg5
- 2.Be6#
- 2.Qe6#
- 1...Bc5
- 2.Be6#
- 2.Qe6#
- 1...Sd4
- 2.Qe7#
- 1...Sg5
- 2.Qe7#
- 1...Sc5
- 2.Qf6#
- 1...Sf8
- 2.Qe7#
- 2.Qf6#
- 1...c5
- 2.Be6#
- 2.Qe6#
- 1...g5
- 2.Bh5#
- 2.Qe6#
- 1...Qa1+!
- threat
- 1.Qxf3+?
- Keys
- 1.Rxe4!
- threat
- 2.Be6#
- 2.Re7#
- 1...Qxb4
- 2.cxd8S#
- 1...Rxg7
- 2.Be6#
- 1...Rf8
- 2.Be6#
- 1...Rh8
- 2.Be6#
- 1...g5
- 2.Bh5#
- 1...Qa2
- 2.Re7#
- 2.cxd8S#
- 1...Qc5
- 2.cxd8S#
- 1...Qd5
- 2.Re7#
- 2.cxd8S#
- 1...Qe5
- 2.cxd8S#
- 1...Qf5
- 2.Re7#
- 2.cxd8S#
- 1...Qg5
- 2.Be6#
- 1...Bc5
- 2.Qb3#
- 1...Sd4
- 2.Re7#
- 1...Sfe5
- 2.S3g5#
- 1...Sg5
- 2.Re7#
- 1...Sc5
- 2.Qxf3#
- 1...Sde5
- 2.Rf4#
- 1...Sf8
- 2.Re7#
- 1...c5
- 2.Qd5#
- threat
- 1.Rxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 10
- Sets
- Q(c);N_GUARD,P_PINQ(A)::PXR(i)=S
- Q(c);N_GUARD::PXR(i)=S
- Q(c);N_GUARD,P_PINS(C)::PXR(i)=S
- S(a);N_GUARD,S_CUTQ(c)::S(C)
- S(g);S_CUTQ(c)::PXR(i)=S
- Tries
- Try
- Q(A);CHECK,XS(a)
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR1(A),XS(g)
- Refutation
- P(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- Q(c);N_GUARD,S_CUTP(d),XQ(A)::PXR(i)=S
- Refutation
- P(d);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD::PXR(i)=S
- S(a);::QAR1(A)
- S(g);N_GUARD::QAR1(A)
- Refutation
- Q(c);CHECK
- Try
- Actual
- R(E);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XB(D)::PXR(i)=S
- R(k);XP(I)::B(F)
- R(k);::B(F)
- P(e);OGATEB::B(F)
- Q(c);N_GUARD::PXR(i)=S
- Q(c);::B(F)
- B(f);S_CUTQ(c)::QAB(A)
- S(a);::R1(E)
- S(a);N_GUARD,S_CUTQ(c)::S(C)
- S(g);N_GUARD,S_CUTQ(c)::QAR(A),XS(a)
- S(g);N_GUARD,S_CUTQ(c)::R(E)
- S(g);::R1(E)
- P(d);N_GUARD,S_CUTQ(c)::QAB(A)
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