MESON Chess Problem Database
Problem Display
PID: 134231 (5r1q/1p4bn/1KpQ4/pb1PpRp1/r2R2P1/2P1kpN1/2p2N2/3BB3 w - - 0 1)
Melnichenko, Viktor Oleksandrovich
The Problemist, 1966
#2
11 + 14
| 56 | The Problemist | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Re4#
- 1...Ra2
- 2.Re4#
- 1...Ra3
- 2.Re4#
- 1...Rc4
- 2.Sf1#
- 2.Rd3#
- 1...Rxf5
- 2.Sxf5#
- 1...Rf6
- 2.Rxe5#
- 2.Qxe5#
- 1...Ra8
- 2.Rxf3#
- 1...Rb8
- 2.Rxf3#
- 1...Rc8
- 2.Rxf3#
- 1...Rd8
- 2.Rxf3#
- 1...Re8
- 2.Rxf3#
- 1...Rg8
- 2.Rxf3#
- 1...Bf1
- 2.Sxf1#
- 1...Bd3
- 2.Rxd3#
- 1...Bc4
- 2.Re4#
- 1...Bf6
- 2.Rxf3#
- 1...Sf6
- 2.Rxf3#
- 1...cxd1Q
- 2.Sxd1#
- 1...cxd1S
- 2.Sxd1#
- 1...cxd1B
- 2.Sxd1#
- 1...cxd1R
- 2.Sxd1#
- 1...Ra1
- Tries
- 1.Rxa4?
- threat
- 2.Re4#
- 2.Qc5#
- 1...Bxa4
- 2.Sf1#
- 2.Qc5#
- 1...cxd1Q
- 2.Re4#
- 1...cxd1R
- 2.Re4#
- 1...Bd3
- 2.Qc5#
- 1...Bc4
- 2.Qc5#
- 1...Sf6
- 2.Rxf3#
- 2.Qc5#
- 1...e4
- 2.Rxe4#
- 1...c5
- 2.Re4#
- 2.Qxc5#
- 1...cxd5!
- threat
- 1.Rf6?
- threat
- 2.Sf5#
- 2.Qxe5#
- 1...Rxf6
- 2.Qxe5#
- 1...Bxf6
- 2.Sf5#
- 1...Sxf6
- 2.Sf5#
- 1...cxd1Q
- 2.Sxd1#
- 2.Qxe5#
- 1...cxd1S
- 2.Sxd1#
- 2.Qxe5#
- 1...cxd1B
- 2.Sxd1#
- 2.Qxe5#
- 1...cxd1R
- 2.Sxd1#
- 2.Qxe5#
- 1...exd4
- 2.Sf5#
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Re8
- 2.Sf5#
- 2.Rxf3#
- 1...Bd3
- 2.Rxd3#
- 1...e4
- 2.Sf5#
- 1...Rxd4!
- threat
- 1.Rxf8?
- threat
- 2.Sf5#
- 2.Rxf3#
- 1...Rxd4
- 2.Rxf3#
- 1...Bxf8
- 2.Sf5#
- 1...Sxf8
- 2.Sf5#
- 1...cxd1Q
- 2.Sxd1#
- 1...cxd1S
- 2.Sxd1#
- 1...cxd1B
- 2.Sxd1#
- 1...cxd1R
- 2.Sxd1#
- 1...Be2
- 2.Sf5#
- 1...Bd3
- 2.Rxd3#
- 2.Rxf3#
- 1...Bf6
- 2.Sf5#
- 1...Sf6
- 2.Sf5#
- 1...e4
- 2.Sf5#
- 1...Qxf8!
- threat
- 1.Qa3?
- threat
- 2.Qc1#
- 1...Rxa3
- 2.Re4#
- 1...cxd1Q
- 2.Sxd1#
- 1...cxd1R
- 2.Sxd1#
- 1...c1Q
- 2.Qxc1#
- 1...c1S
- 2.Qxc1#
- 1...c1B
- 2.Qxc1#
- 1...c1R
- 2.Qxc1#
- 1...Rxd4!
- threat
- 1.Qf6?
- threat
- 2.Rxf3#
- 2.Rxe5#
- 1...Rxd4
- 2.Rxf3#
- 1...Rxf6
- 2.Rxe5#
- 1...Bxf6
- 2.Rxf3#
- 1...Sxf6
- 2.Rxf3#
- 1...cxd1Q
- 2.Sxd1#
- 2.Rxe5#
- 1...cxd1B
- 2.Sxd1#
- 2.Rxe5#
- 1...exd4
- 2.Rxf3#
- 2.Re5#
- 1...Be2
- 2.Rxe5#
- 1...Re8
- 2.Rxf3#
- 1...Bd3
- 2.Rxd3#
- 2.Rxf3#
- 1...e4!
- threat
- 1.Rxa4?
- Keys
- 1.c4!
- threat
- 2.Rd3#
- 2.Re4#
- 1...Kxd4
- 2.Qc5#
- 1...Rxc4
- 2.Rd3#
- 1...Rxf5
- 2.Sxf5#
- 2.Re4#
- 1...Bxc4
- 2.Re4#
- 1...cxd1Q
- 2.Re4#
- 1...cxd1R
- 2.Re4#
- 1...exd4
- 2.Sf1#
- 1...cxd5
- 2.Rd3#
- 1...c1S
- 2.Re4#
- 1...Ra3
- 2.Re4#
- 1...Sf6
- 2.Rd3#
- 1...e4
- 2.Rxe4#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 6
- REMOVED MATES = 14
- Sets
- R(d);N_GUARD::R1(F)
- R(m);XR(I)::S(E),XR(m)
- R(m);N_GUARD::R1(I),XP(c)
- B(f);N_GUARD::S(E),XB(f)
- B(f);N_GUARD::R1(F),XB(f)
- B(f);S_CUTR(d)::R1(F)
- B(k);S_CUTR(m)::R1(I),XP(c)
- S(l);S_CUTR(m)::R1(I),XP(c)
- P(a);XB(A)::S(C),XQ(a)
- P(a);XB(A)::S(C),XS(a)
- P(a);XB(A)::S(C),XB(a)
- P(a);XB(A)::S(C),XR(a)
- Tries
- Try
- R(F);XR(d)
- Threat
- DUALS(2)
- Vars
- P(a);XB(A)::R1(F)
- B(f);::QAB(K)
- P(g);::R1(F),XP(g)
- Refutation
- P(i);XP(H)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(m);XR(I)::QAR2(K),XP(g)
- B(k);XR(I)::S(E)
- S(l);XR(I)::S(E)
- B(f);N_GUARD::R1(F),XB(f)
- P(g);::S(E)
- Refutation
- R(d);XR(F)
- Try
- R(I);XR(m)
- Threat
- DUALS(2)
- Vars
- R(d);XR(F)::R1(I),XP(c)
- B(k);XR(I)::S(E)
- S(l);XR(I)::S(E)
- P(a);XB(A)::S(C),XQ(a)
- P(a);XB(A)::S(C),XS(a)
- P(a);XB(A)::S(C),XB(a)
- P(a);XB(A)::S(C),XR(a)
- B(f);::S(E)
- B(k);::S(E)
- S(l);::S(E)
- P(g);::S(E)
- Refutation
- Q(n);XR(I)
- Try
- Q(K);
- Threat
- QAB(K)
- Vars
- R(d);N_GUARD,XQ(K)::R1(F)
- P(a);XB(A)::S(C),XQ(a)
- P(a);XB(A)::S(C),XR(a)
- P(a);::QAB(K),XQ(a)
- P(a);::QAB(K),XS(a)
- P(a);::QAB(K),XB(a)
- P(a);::QAB(K),XR(a)
- Refutation
- R(d);XR(F)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- R(d);XR(F)::R1(I),XP(c)
- R(m);XQ(K)::R(I),XP(g)
- B(k);XQ(K)::R1(I),XP(c)
- S(l);XQ(K)::R1(I),XP(c)
- B(f);::R(I),XP(g)
- R(m);::R1(I),XP(c)
- Refutation
- P(g);
- Try
- Actual
- P(D);
- Threat
- DUALS(2)
- Vars
- K(b);OGATEB,S_FLIGHT,XR(F)::QAB1(K)
- R(d);XP(D)::R1(F)
- B(f);XP(D)::R1(F)
- P(a);XB(A)::R1(F)
- P(g);SBLOCK,XR(F)::S(E)
- P(i);XP(H)::R1(F)
- P(a);::R1(F)
- R(d);::R1(F)
- S(l);::R1(F)
- P(g);::R1(F),XP(g)
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