MESON Chess Problem Database
Problem Display
PID: 262846 (2brQ1n1/KP2p3/1pPR1p1q/1p2kPP1/3R4/B4P1B/2Nb4/4r3 w - - 0 1)
Piatesi, Antonio
Szachy, 1978
#2
12 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Re4#
- 1...Rb1
- 2.Re4#
- 1...Rc1
- 2.Re4#
- 1...Rd1
- 2.Re4#
- 1...Rf1
- 2.Re4#
- 1...Rg1
- 2.Re4#
- 1...Rh1
- 2.Re4#
- 1...Re3
- 2.f4#
- 1...Re4
- 2.Rxe4#
- 1...Rxd6
- 2.Bxd6#
- 1...Rd7
- 2.Re6#
- 1...Rxe8
- 2.R6d5#
- 1...Bc3
- 2.f4#
- 1...Be3
- 2.Re4#
- 1...Bb4
- 2.f4#
- 1...Bf4
- 2.R4d5#
- 1...Ba5
- 2.f4#
- 1...Be6
- 2.Rxe6#
- 1...Bxb7
- 2.Re6#
- 1...Bd7
- 2.R6d5#
- 1...Ra1
- Tries
- 1.Se3?
- threat
- 2.Re4#
- 2.f4#
- 1...Qxg5
- 2.Re4#
- 1...Rxe3
- 2.f4#
- 1...Rxd6
- 2.Re4#
- 1...Bxe3
- 2.Re4#
- 1...Bxf5
- 2.f4#
- 1...fxg5
- 2.Re4#
- 1...Rf1
- 2.Re4#
- 1...Bb4
- 2.f4#
- 1...b4
- 2.Sc4#
- 2.f4#
- 1...Qh4!
- threat
- 1.Qd7?
- threat
- 2.R6d5#
- 2.Re6#
- 1...Qxh3
- 2.R6d5#
- 1...Rxd7
- 2.Re6#
- 1...Bxd7
- 2.R6d5#
- 1...exd6
- 2.Bxd6#
- 1...Re4
- 2.Rxe4#
- 1...e6
- 2.Rxe6#
- 1...fxg5!
- threat
- 1.Qxe7+?
- 1...Be6
- 2.Rxe6#
- 2.Qxe6#
- 1...Sxe7!
- 1...Be6
- 1.b8Q?
- threat
- 2.R6d5#
- 2.Re6#
- 2.Rd7#
- 2.Rxd8#
- 1...Rd7+
- 2.Rxd7#
- 1...Qxh3
- 2.R6d5#
- 1...Rxd6
- 2.Bxd6#
- 2.Qxd6#
- 1...Rxe8
- 2.R6d5#
- 2.Re6#
- 2.Rxf6#
- 2.Rd7#
- 2.Rd8#
- 1...fxg5
- 2.Re6#
- 1...e6
- 2.R6d5#
- 2.Rxe6#
- 2.Rd7#
- 2.Rxd8#
- 1...Bb4
- 2.R6d5#
- 2.Re6#
- 2.f4#
- 1...Ba6
- 2.R6d5#
- 2.Re6#
- 2.Rxd8#
- 1...Be6
- 2.R6d5#
- 2.Rxe6#
- 2.Rxd8#
- 1...Bb7
- 2.R6d5#
- 2.Re6#
- 2.Rxd8#
- 1...Bd7
- 2.R6d5#
- 2.Re6#
- 1...Bxf5!
- threat
- 1.b8B?
- threat
- 2.R6d5#
- 2.Re6#
- 2.Rd7#
- 2.Rxd8#
- 1...Rd7+
- 2.Rxd7#
- 1...Qxh3
- 2.R6d5#
- 1...Rxd6
- 2.Baxd6#
- 2.Bbxd6#
- 1...Rxe8
- 2.R6d5#
- 2.Re6#
- 2.Rxf6#
- 2.Rd7#
- 2.Rd8#
- 1...fxg5
- 2.Re6#
- 1...e6
- 2.R6d5#
- 2.Rxe6#
- 2.Rd7#
- 2.Rxd8#
- 1...Bb4
- 2.R6d5#
- 2.Re6#
- 2.f4#
- 1...Ba6
- 2.R6d5#
- 2.Re6#
- 2.Rxd8#
- 1...Be6
- 2.R6d5#
- 2.Rxe6#
- 2.Rxd8#
- 1...Bb7
- 2.R6d5#
- 2.Re6#
- 2.Rxd8#
- 1...Bd7
- 2.R6d5#
- 2.Re6#
- 1...Bxf5!
- threat
- 1.Se3?
- Keys
- 1.c7!
- threat
- 2.Qxb5#
- 1...Rxd6
- 2.Bxd6#
- 1...Rxe8
- 2.R6d5#
- 1...Bxb7
- 2.Re6#
- 1...Re4
- 2.Rxe4#
- 1...Rb1
- 2.Re4#
- 1...Rd7
- 2.Re6#
- 1...Bb4
- 2.f4#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.R6d5#
- 1...b4
- 2.Qb5#
- threat
- 1.c7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(a);N_GUARD,P_PINB(B)::R1(E)
- R(a);N_GUARD::R1(E)
- R(a);S_CUTB(b)::P(C)
- R(a);N_GUARD::R1(E),XR(a)
- R(j);OGATE,XR(I)::B(B),XR(j)
- R(j);P_PINP(K),S_CUTB(i)::R1(I)
- R(j);N_GUARD,N_SPINP(h),XQ(L)::R1(I)
- B(b);N_GUARD::P(C)
- B(b);S_CUTR(a)::R1(E)
- B(b);SBLOCK::R1(E)
- B(i);N_GUARD,N_SPINP(h)::R1(I),XB(i)
- B(i);N_GUARD,XP(K)::R1(I)
- B(i);S_CUTR(j)::R1(I)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- Q(g);XP(G)::R1(E)
- R(a);XS(A)::P(C)
- R(j);XR(I)::R1(E)
- B(b);XS(A)::R1(E)
- B(i);XP(F)::P(C)
- P(f);XP(G)::R1(E)
- R(a);::R1(E)
- B(b);::P(C)
- Refutation
- Q(g);
- Try
- Q(L);N_PINP(h)
- Threat
- DUALS(2)
- Vars
- Q(g);XB(D)::R1(I)
- R(j);P_PINP(K),XQ(L)::R1(I)
- B(i);XQ(L)::R1(I)
- P(h);OGATE,XR(I)::B(B),XP(h)
- R(a);N_GUARD::R1(E),XR(a)
- P(h);::R1(I),XP(h)
- Refutation
- P(f);XP(G)
- Try
- Q(L);CHECK,XP(h)
- Refutation
- S(k);XQ(L)
- Try
- P(K);
- Threat
- DUALS(4)
- Vars
- R(j);CHECK::QAB(K)+R(I),XR(j)
- Q(g);XB(D)::QAB(K)+R(I),DCHECK
- P(f);XP(G)::QAB(K)+R(I),DCHECK
- Refutation
- B(i);XP(F)
- Try
- P(K);
- Threat
- DUALS(4)
- Vars
- R(j);CHECK::B(K)+R(I),XR(j)
- Q(g);XB(D)::B(K)+R(I),DCHECK
- P(f);XP(G)::B(K)+R(I),DCHECK
- Refutation
- B(i);XP(F)
- Try
- Actual
- P(H);
- Threat
- QAR(L),XP(c)
- Vars
- R(j);OGATE,XR(I)::B(B),XR(j)
- R(j);N_GUARD,N_SPINP(h),XQ(L)::R1(I)
- B(i);N_GUARD,XP(K)::R1(I)
- R(a);N_GUARD::R1(E),XR(a)
- R(a);N_GUARD::R1(E)
- R(j);S_CUTB(i)::R1(I)
- B(b);N_GUARD::P(C)
- B(i);N_GUARD,N_SPINP(h)::R1(I),XB(i)
- B(i);S_CUTR(j)::R1(I)
- P(c);::QAR(L)
Developed and maintained by Brian Stephenson.
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