MESON Chess Problem Database
Problem Display
PID: 55487 (4N1b1/1P1B4/1N1r1R2/b3k1p1/K1PR1q2/3PP1n1/7Q/4B3 w - - 0 1)
Livshits, Eduard Yakovlevich
1st Prize, Szachy, 1963
#2
12 + 7
| 3747 | FIDE Album (1962-1964) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Re4#
- 1...Qf2
- 2.Re4#
- 1...Qxd4
- 2.Rf5#
- 1...Qe4
- 2.Rxe4#
- 1...Qh4
- 2.Rf5#
- 1...Qf5
- 2.Rxf5#
- 1...Qxf6
- 2.Re4#
- 1...Re6
- 2.Rd5#
- 1...Rxd7
- 2.Sxd7#
- 1...Bxc4
- 2.Sxc4#
- 1...Sf1
- 2.Re4#
- 2.Rf5#
- 1...Sh1
- 2.Re4#
- 2.Rf5#
- 1...Se2
- 2.Re4#
- 2.Rf5#
- 1...Se4
- 2.Rxe4#
- 2.Rf5#
- 1...Sf5
- 2.Re4#
- 2.Rxf5#
- 1...Sh5
- 2.Re4#
- 2.Rf5#
- 1...Qf1
- Tries
- 1.Bc3?
- threat
- 2.Re4#
- 2.Rd5#
- 1...Qxd4
- 2.Rf5#
- 2.Qxg3#
- 1...Rxd4
- 2.b8Q#
- 2.b8B#
- 1...Qe4
- 2.Rxe4#
- 2.Rd5#
- 1...Rd5
- 2.Re4#
- 2.Rxd5#
- 1...Bd5
- 2.Re4#
- 2.Rxd5#
- 1...Se4
- 2.Rxe4#
- 2.Rd5#
- 2.Rf5#
- 1...Bxc3!
- threat
- 1.Bxg3?
- threat
- 2.Re4#
- 2.Rf5#
- 1...Rxd4
- 2.Rf5#
- 1...Rxf6
- 2.Re4#
- 1...Rxd7
- 2.Sxd7#
- 2.Re4#
- 1...Re6
- 2.Re4#
- 2.Rd5#
- 1...Bd5
- 2.Rf5#
- 1...Be6
- 2.Re4#
- 1...Bh7!
- threat
- 1.Re4+?
- 1...Sxe4
- 2.Rf5#
- 1...Qxe4!
- 1...Sxe4
- 1.Rf5+?
- 1...Sxf5
- 2.Re4#
- 1...Qxf5!
- 1...Sxf5
- 1.Qxg3?
- threat
- 2.Re4#
- 2.Rf5#
- 1...Rxd4
- 2.Rf5#
- 1...Rxf6
- 2.Re4#
- 1...Rxd7
- 2.Sxd7#
- 2.Re4#
- 1...Re6
- 2.Re4#
- 2.Rd5#
- 1...Bd5
- 2.Rf5#
- 1...Be6
- 2.Re4#
- 1...Bh7!
- threat
- 1.Qb2?
- threat
- 2.Re4#
- 2.Rd5#
- 1...Qxd4
- 2.Bxg3#
- 1...Rxd4
- 2.b8Q#
- 2.b8B#
- 1...Qe4
- 2.Rxe4#
- 2.Rd5#
- 1...Rd5
- 2.Re4#
- 2.Rxd5#
- 1...Bd5
- 2.Re4#
- 2.Rxd5#
- 1...Se4
- 2.Rxe4#
- 2.Rd5#
- 1...Bc3!
- threat
- 1.b8Q?
- threat
- 2.Qxd6#
- 1...Qxd4
- 2.Rf5#
- 1...Qxf6
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 2.Rf5#
- 1...Sf5
- 2.Re4#
- 2.Rxf5#
- 1...Bb4!
- threat
- 1.Bc3?
- Keys
- 1.Qh8!
- threat
- 2.Rf5#
- 1...Qxf6
- 2.Bxg3#
- 1...Rxf6
- 2.b8Q#
- 2.b8B#
- 1...Rxd7
- 2.Sxd7#
- 1...Qf5
- 2.Rxf5#
- 2.Re6#
- 1...Re6
- 2.Rd5#
- 1...Be6
- 2.Rfxf4#
- 1...Sf5
- 2.Rxf5#
- 2.Re6#
- threat
- 1.Qh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(b);N_GUARD,P_SPINS(a)::R1(G)
- Q(b);N_GUARD,P_PINP(F),P_SPINS(a),XR(G)::R1(I)
- Q(b);N_GUARD,P_SPINS(a)::R1(G),XQ(b)
- Q(b);N_GUARD,P_SPINS(a)::R1(I)
- Q(b);N_GUARD,P_SPINS(a)::R1(I),XQ(b)
- Q(b);N_GUARD,P_SPINS(a),XR(I)::R1(G)
- R(f);N_GUARD,S_CUTB(g)::R1(G)
- R(f);XB(K)::S(H),XR(f)
- B(g);XP(F)::S(H),XB(g)
- Tries
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(f);P_PINP(F),P_SPINR(f),XR(G)::P=Q
- Refutation
- B(c);XB(A)
- Try
- B(A);P_PINQ(b),XS(a)
- Threat
- DUALS(2)
- Vars
- R(f);P_PINP(F),XR(G)::R1(I)
- R(f);XR(I)::R1(G)
- B(g);::R1(I)
- B(g);::R1(G)
- Refutation
- B(g);
- Try
- R(G);CHECK
- Vars
- S(a);P_SPINQ(b),XR(G)::R1(I)
- Refutation
- Q(b);P_PINP(F),P_SPINS(a),XR(G)
- Try
- R(I);CHECK
- Vars
- S(a);P_SPINQ(b),XR(I)::R1(G)
- Refutation
- Q(b);P_SPINS(a),XR(I)
- Try
- Q(B);P_PINQ(b),XS(a)
- Threat
- DUALS(2)
- Vars
- R(f);P_PINP(F),XR(G)::R1(I)
- R(f);XR(I)::R1(G)
- B(g);::R1(I)
- B(g);::R1(G)
- Refutation
- B(g);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(b);OGATEB,P_PINP(F),P_SPINQ(b),XR(G)::B(A),XS(a)
- R(f);P_PINP(F),P_SPINR(f),XR(G)::P=Q
- Refutation
- B(c);
- Try
- P(J);P_PINR(f)
- Threat
- QAB1(J),XR(f)
- Vars
- Q(b);N_GUARD,P_PINP(F),P_SPINS(a),XR(G)::R1(I)
- Q(b);N_GUARD,P_SPINS(a),XR(I)::R1(G)
- Refutation
- B(c);
- Try
- Actual
- Q(B);
- Threat
- QAB(B)+R(I),DCHECK
- Vars
- Q(b);OGATEB,P_SPINQ(b),XR(I)::B(A),XS(a)
- R(f);P_SPINR(f),XR(I)::P=Q
- R(f);XB(K)::S(H),XR(f)
- R(f);N_GUARD,S_CUTB(g)::R1(G)
- B(g);S_CUTR(f)::QAB(B)+R(I),XQ(b)
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