MESON Chess Problem Database
Problem Display
PID: 135 (B4K2/4pQ2/6p1/2p1kN2/6r1/2NRnbP1/1B3q2/4R3 w - - 0 1)
Loshinski, Lev Ilich
Umnov, Evgeny Ivanovich
1st Prize, Western Morning News, 1930
#2
9 + 8
| 35 | L'Italia Scacchistica | 1930 |
| 14752 | Soviet Chess Compositions (1945-1947) | 1947 |
| 5862 | An ABC of Chess Problems | 1970 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 5314 | Grossmeister Shakhmatnoi Kompozitsii | 1980 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Se4#
- 1...Qf1
- 2.Se4#
- 1...Rxg3
- 2.Se2#
- 1...Rg5
- 2.Se2#
- 1...Bd1
- 2.Rd5#
- 1...Be2
- 2.Se4#
- 1...Be4
- 2.Se2#
- 1...Bd5
- 2.Rxd5#
- 1...gxf5
- 2.Qxe7#
- 1...Qg1
- Tries
- 1.Kxe7?
- threat
- 2.Qe6#
- 2.Qf6#
- 1...Rxg3
- 2.Se2#
- 1...Bd5
- 2.Rxd5#
- 2.Qxd5#
- 2.Qf6#
- 1...Qxg3!
- threat
- 1.Sxe3?
- threat
- 2.Sc4#
- 2.Sxg4#
- 2.Qxe7#
- 1...Qxe1
- 2.Qxe7#
- 1...Qxg3
- 2.Se4#
- 2.Sc4#
- 2.Sxg4#
- 1...Rxg3
- 2.Se2#
- 2.Sc4#
- 2.Sg4#
- 1...Bxa8
- 2.Sc4#
- 2.Sxg4#
- 1...Rd4
- 2.Sc4#
- 2.Qxe7#
- 1...Bd5
- 2.Sc4#
- 2.Rxd5#
- 1...Qe2
- 2.Qxe7#
- 1...Ra4
- 2.Sc4#
- 2.Sg4#
- 2.Qxe7#
- 1...Rb4
- 2.Sc4#
- 2.Sg4#
- 2.Qxe7#
- 1...Rc4
- 2.Sxc4#
- 2.Sg4#
- 2.Qxe7#
- 1...Re4
- 2.Sc4#
- 2.Rd5#
- 2.Qxe7#
- 1...Rf4
- 2.Sc4#
- 2.Sg4#
- 2.gxf4#
- 1...Rh4
- 2.Sc4#
- 2.Sg4#
- 2.Qxe7#
- 1...Rg5
- 2.Se2#
- 2.Sc4#
- 2.Sg4#
- 2.Qxe7#
- 1...Bd1
- 2.Sc4#
- 2.Sxg4#
- 2.Rd5#
- 1...Bh1
- 2.Sc4#
- 2.Sxg4#
- 1...Be2
- 2.Se4#
- 2.Sxg4#
- 2.Rd5#
- 1...Bg2
- 2.Sc4#
- 2.Sxg4#
- 1...Be4
- 2.Se2#
- 2.Sc4#
- 2.Sxg4#
- 1...Bc6
- 2.Sc4#
- 2.Sxg4#
- 1...Bb7
- 2.Sc4#
- 2.Sxg4#
- 1...c4
- 2.Sxc4#
- 2.Sxg4#
- 2.Qxe7#
- 1...e6
- 2.Sc4#
- 2.Sxg4#
- 2.Qg7#
- 1...Qxe3!
- threat
- 1.Bd5?
- threat
- 2.Qe6#
- 1...Rxg3
- 2.Se2#
- 1...Bxd5
- 2.Rxd5#
- 1...e6
- 2.Qxe6#
- 1...Qxg3!
- threat
- 1.Rexe3+?
- 1...Re4
- 2.Se2#
- 2.Rd5#
- 1...Be4
- 2.Se2#
- 2.Rd5#
- 1...Qxe3!
- 1...Re4
- 1.Rdxe3+?
- 1...Re4
- 2.Se2#
- 1...Be4
- 2.Se2#
- 1...Qxe3!
- 1...Re4
- 1.Qd5+?
- 1...Kf6
- 2.Se4#
- 1...Bxd5!
- 1...Kf6
- 1.Kxe7?
- Keys
- 1.Sh6!
- threat
- 2.Qxe7#
- 1...Qxg3
- 2.Se4#
- 1...Rxg3
- 2.Se2#
- 1...Bxa8
- 2.Sxg4#
- 1...Bd5
- 2.Rxd5#
- 1...Rf4
- 2.gxf4#
- 1...Bd1
- 2.Rd5#
- 1...Bh1
- 2.Sxg4#
- 1...Be2
- 2.Se4#
- 1...Bg2
- 2.Sxg4#
- 1...Be4
- 2.Se2#
- 1...Bc6
- 2.Sxg4#
- 1...Bb7
- 2.Sxg4#
- 1...e6
- 2.Qg7#
- threat
- 1.Sh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 4
- Sets
- Q(a);N_GUARD::B(B)+S(C)
- R(d);N_GUARD,XP(E)::B(B)+S(C)
- R(d);N_GUARD::B(B)+S(C)
- B(c);N_GUARD::R1(D)
- B(c);N_SPINS(b),S_CUTQ(a)::B(B)+S(C)
- B(c);N_SPINS(b),S_CUTR(d)::B(B)+S(C)
- B(c);N_GUARD::R1(D),XB(c)
- P(g);SBLOCK,XS(F)::QAR2(G),XP(h)
- Tries
- Try
- K(I);S_FLIGHT,XP(h)
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,XP(E)::B(B)+S(C)
- Refutation
- Q(a);XP(E)
- Try
- S(F);XS(b)
- Threat
- DUALS(3)
- Vars
- Q(a);XR(A)::QAR2(G),XP(h)
- Q(a);::QAR2(G),XP(h)
- Refutation
- Q(a);P_SPINQ(a),XS(F)
- Try
- B(H);
- Threat
- QAR1(G)
- Vars
- R(d);N_GUARD,XP(E)::B(B)+S(C)
- B(c);OGATE,XB(H)::R1(D),XB(c)
- P(h);::QAR1(G),XP(h)
- Refutation
- Q(a);XP(E)
- Try
- R(A);CHECK,XS(b)
- Refutation
- Q(a);XR(A)
- Try
- R(D);CHECK,XS(b)
- Vars
- R(d);P_SPINR(d)::B(B)+S(C)
- B(c);P_SPINB(c)::B(B)+S(C)
- Refutation
- Q(a);P_SPINQ(a),XR(D)
- Try
- Q(G);CHECK
- Vars
- K(f);N_SPINS(b),S_FLIGHT::B(B)+S(C),DCHECK
- Refutation
- B(c);P_PINS(F),XQ(G)
- Try
- Actual
- S(F);
- Threat
- QAR2(G),XP(h)
- Vars
- Q(a);N_GUARD,XP(E)::B(B)+S(C)
- R(d);N_GUARD,XP(E)::B(B)+S(C)
- B(c);N_GUARD,P_PINQ(G),XB(H)::S(F),XR(d)
- B(c);N_GUARD,P_PINQ(G)::R1(D),XB(c)
- R(d);OGATE,P_PINQ(G)::P(E),XR(d)
- B(c);N_GUARD,P_PINQ(G)::R1(D)
- B(c);N_GUARD,P_PINQ(G)::S(F),XR(d)
- B(c);N_SPINS(b),P_PINQ(G),S_CUTQ(a)::B(B)+S(C)
- B(c);N_SPINS(b),P_PINQ(G),S_CUTR(d)::B(B)+S(C)
- P(h);SBLOCK::QAB(G)
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