MESON Chess Problem Database
Problem Display
PID: 270306 (1b1Q4/4NKpB/2P1P2R/r2pkP1P/2Pn4/3pPP2/1r5R/4NbB1 w - - 0 1)
Simoni, Francesco
Due Alfieri, 1978
#2
15 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rba2
- 2.Qxb8#
- 1...Rc2
- 2.Qxb8#
- 1...Rd2
- 2.Qxb8#
- 1...Re2
- 2.Sxd3#
- 2.Qxb8#
- 1...Rf2
- 2.Qxb8#
- 1...Rg2
- 2.Qxb8#
- 1...Rxh2
- 2.Bxh2#
- 2.Qxb8#
- 1...Ra1
- 2.Qxd5#
- 1...Raa2
- 2.Qxd5#
- 1...Ra3
- 2.Qxd5#
- 1...Ra4
- 2.Qxd5#
- 1...Ra6
- 2.Qxd5#
- 1...Ra7
- 2.Qxd5#
- 1...Ra8
- 2.Qxd5#
- 1...Bg2
- 2.Sxd3#
- 1...Bh3
- 2.Sxd3#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Se2
- 2.Sxd3#
- 1...Sb3
- 2.Qxb8#
- 1...Sb5
- 2.Qxd5#
- 1...Sxf5
- 2.Sg6#
- 1...Sxc6
- 2.Sxc6#
- 1...Sxe6
- 2.Rxe6#
- 1...dxc4
- 2.Qxd4#
- 1...Rba2
- Tries
- 1.Bf2?
- threat
- 2.Bg3#
- 1...Rxf2
- 2.Qxb8#
- 1...Sxf5
- 2.Sg6#
- 1...Sxe6
- 2.Rxe6#
- 1...Se2
- 2.Sxd3#
- 1...Sxf3!
- threat
- 1.Rxb2?
- threat
- 2.Bh2#
- 2.Qxb8#
- 1...Sxf5
- 2.Sg6#
- 1...Sxc6
- 2.Sxc6#
- 2.Bh2#
- 1...Sxe6
- 2.Rxe6#
- 1...Rb5
- 2.Bh2#
- 1...Ra7
- 2.Bh2#
- 2.Qxd5#
- 1...Ra8
- 2.Bh2#
- 2.Qxd5#
- 1...Bd6
- 2.Bh2#
- 1...Ba7
- 2.Bh2#
- 2.Qc7#
- 1...Bc7
- 2.Bh2#
- 2.Qxc7#
- 1...Se2
- 2.Sxd3#
- 2.Qxb8#
- 1...Sb5
- 2.Bh2#
- 2.Qxd5#
- 1...Sxf3!
- threat
- 1.Rc2?
- threat
- 2.Bh2#
- 1...Rxc2
- 2.Qxb8#
- 1...Sxf5
- 2.Sg6#
- 1...Sxe6
- 2.Rxe6#
- 1...Se2
- 2.Sxd3#
- 1...Sxf3!
- threat
- 1.Rd2?
- threat
- 2.Bh2#
- 1...Rxd2
- 2.Qxb8#
- 1...Sxf5
- 2.Sg6#
- 1...Sxe6
- 2.Rxe6#
- 1...Se2
- 2.Sxd3#
- 1...Sxf3!
- threat
- 1.Re2?
- threat
- 2.Sxd3#
- 2.Bh2#
- 1...Rxe2
- 2.Sxd3#
- 2.Qxb8#
- 1...Bxe2
- 2.Bh2#
- 1...Sxe2
- 2.Sxd3#
- 1...Sxf5
- 2.Sxd3#
- 2.Sg6#
- 1...Sxe6
- 2.Sxd3#
- 2.Rxe6#
- 1...dxe2
- 2.Sd3#
- 2.Bh2#
- 1...dxc4
- 2.Bh2#
- 2.Qxd4#
- 1...Rd2
- 2.Bh2#
- 2.Qxb8#
- 1...Rb3
- 2.Bh2#
- 1...Ra3
- 2.Bh2#
- 2.Qxd5#
- 1...d2
- 2.Sd3#
- 2.Bh2#
- 1...Sxf3!
- threat
- 1.Rf2?
- threat
- 2.Bh2#
- 1...Rxf2
- 2.Qxb8#
- 1...Sxf5
- 2.Sg6#
- 1...Sxe6
- 2.Rxe6#
- 1...Se2
- 2.Sxd3#
- 1...Sxf3!
- threat
- 1.Rg2?
- threat
- 2.Bh2#
- 1...Rxg2
- 2.Qxb8#
- 1...Sxf5
- 2.Sg6#
- 1...Sxe6
- 2.Rxe6#
- 1...Se2
- 2.Sxd3#
- 1...Sxf3!
- threat
- 1.c5?
- threat
- 2.Qxd5#
- 1...Bd6
- 2.Qxd6#
- 1...Rxc5!
- threat
- 1.Bf2?
- Keys
- 1.Rh4!
- threat
- 2.exd4#
- 1...Sxf3
- 2.Sxf3#
- 1...Sxf5
- 2.Sg6#
- 1...Sxc6
- 2.Sxc6#
- 1...Sxe6
- 2.Rxe6#
- 1...Ba7
- 2.Qc7#
- 1...Sc2
- 2.Bh2#
- 1...Se2
- 2.Sxd3#
- 1...Sb3
- 2.Qxb8#
- 1...Sb5
- 2.Qxd5#
- threat
- 1.Rh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 16
- Sets
- R(b);N_GUARD::QAB(O),XB(i)
- R(e);N_GUARD::QAR1(O),XP(f)
- R(e);N_GUARD,P_PINS(L)::QAR1(O),XP(f)
- B(a);N_GUARD::S(A),XP(c)
- B(i);N_GUARD::QAB(O)
- B(i);N_GUARD::QAB(O),XB(i)
- S(d);S_CUTB(a)::S(A),XP(c)
- S(d);S_CUTR(b)::QAB(O),XB(i)
- S(d);S_CUTR(e)::QAR1(O),XP(f)
- S(d);SBLOCK,XP(G)::S(L)
- S(d);XP(I)::S(L),XS(d)
- S(d);OGATE,XP(J)::R1(K),XS(d)
- P(f);OGATE,XP(F)::QAB1(O),XS(d)
- Tries
- Try
- B(B);
- Threat
- B(B)
- Vars
- R(b);N_GUARD,XB(B)::QAB(O),XB(i)
- S(d);SBLOCK,XP(G)::S(L)
- S(d);OGATE,XP(J)::R1(K),XS(d)
- S(d);S_CUTB(a)::S(A),XP(c)
- Refutation
- S(d);XP(E)
- Try
- R(C);XR(b)
- Threat
- DUALS(2)
- Vars
- S(d);SBLOCK,XP(G)::S(L)
- S(d);OGATE,XP(J)::R1(K),XS(d)
- R(e);::B(B)
- B(i);::B(B)
- Refutation
- S(d);XP(E)
- Try
- R(C);
- Threat
- B(B)
- Vars
- R(b);N_GUARD,XR(C)::QAB(O),XB(i)
- S(d);SBLOCK,XP(G)::S(L)
- S(d);OGATE,XP(J)::R1(K),XS(d)
- S(d);S_CUTB(a)::S(A),XP(c)
- Refutation
- S(d);XP(E)
- Try
- R(C);
- Threat
- B(B)
- Vars
- R(b);N_GUARD,XR(C)::QAB(O),XB(i)
- S(d);SBLOCK,XP(G)::S(L)
- S(d);OGATE,XP(J)::R1(K),XS(d)
- S(d);S_CUTB(a)::S(A),XP(c)
- Refutation
- S(d);XP(E)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(a);XR(C)::B(B)
- S(d);XR(C)::S(A),XP(c)
- R(b);::B(B)
- Refutation
- S(d);XP(E)
- Try
- R(C);
- Threat
- B(B)
- Vars
- R(b);N_GUARD,XR(C)::QAB(O),XB(i)
- S(d);SBLOCK,XP(G)::S(L)
- S(d);OGATE,XP(J)::R1(K),XS(d)
- S(d);S_CUTB(a)::S(A),XP(c)
- Refutation
- S(d);XP(E)
- Try
- R(C);
- Threat
- B(B)
- Vars
- R(b);N_GUARD,XR(C)::QAB(O),XB(i)
- S(d);SBLOCK,XP(G)::S(L)
- S(d);OGATE,XP(J)::R1(K),XS(d)
- S(d);S_CUTB(a)::S(A),XP(c)
- Refutation
- S(d);XP(E)
- Try
- P(F);
- Threat
- QAR1(O),XP(f)
- Vars
- B(i);N_GUARD::QAB1(O),XB(i)
- Refutation
- R(e);XP(F)
- Try
- Actual
- R(C);
- Threat
- P(D),XS(d)
- Vars
- S(d);XP(E)::S(A),XS(d)
- S(d);SBLOCK,XP(G)::S(L)
- S(d);XP(I)::S(L),XS(d)
- S(d);OGATE,XP(J)::R1(K),XS(d)
- B(i);N_GUARD::QAB(O)
- S(d);S_CUTR(b)::B(B)
- S(d);S_CUTB(a)::S(A),XP(c)
- S(d);S_CUTR(b)::QAB(O),XB(i)
- S(d);S_CUTR(e)::QAR1(O),XP(f)
Developed and maintained by Brian Stephenson.
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