MESON Chess Problem Database
Problem Display
PID: 270286 (3Rb3/8/ppp1r1nn/P3k3/1Q2N1PB/K2Pr3/B4R2/b1N5 w - - 0 1)
de Simoni, Alessandro
3rd Comm., Sinfonie Scacchistiche, 1986
#2
11 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rxd3+
- 2.Sxd3#
- 1...Rxe4
- 2.Qxe4#
- 1...Rd6
- 2.Qxd6#
- 1...Rf6
- 2.Bxf6#
- 1...Re7
- 2.Bf6#
- 2.Qd6#
- 1...Bb2+
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 1...Sf5
- 2.Rxf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...bxa5
- 2.Qc5#
- 1...b5
- 2.Qc5#
- 1...c5
- 2.Rd5#
- 1...Rxd3+
- Tries
- 1.Sd2?
- threat
- 2.Sc4#
- 1...Rxd3+
- 2.Sxd3#
- 1...Bb2+
- 2.Qxb2#
- 1...Rf3
- 2.Sxf3#
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rd6
- 2.Qxd6#
- 1...Rf6
- 2.Bxf6#
- 1...Re7
- 2.Bf6#
- 2.Qd6#
- 1...b5
- 2.Qc5#
- 1...Bd7!
- threat
- 1.Sc3?
- threat
- 2.Qd4#
- 2.d4#
- 1...Rxd3
- 2.Sxd3#
- 2.Qe4#
- 1...Bxc3
- 2.Qxc3#
- 1...Rf3
- 2.Qd4#
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rd6
- 2.Qxd6#
- 1...Bd7
- 2.d4#
- 1...Sf5
- 2.Rxf5#
- 1...c5
- 2.Rd5#
- 1...Bb2+!
- threat
- 1.Sd6?
- threat
- 2.Sc4#
- 1...Rxd3+
- 2.Sxd3#
- 1...Bb2+
- 2.Qxb2#
- 1...Rxd6
- 2.Qxd6#
- 1...Rf3
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rf6
- 2.Bxf6#
- 1...Re7
- 2.Bf6#
- 1...b5
- 2.Qc5#
- 1...Bd7!
- threat
- 1.Bg3+?
- 1...Sf4
- 2.Bxf4#
- 1...Rxg3!
- 1...Sf4
- 1.Rxe8?
- threat
- 2.Bf6#
- 2.Rxe6#
- 2.Qd6#
- 1...Rxd3+
- 2.Sxd3#
- 1...Bb2+
- 2.Qxb2#
- 1...Rxe4
- 2.Bf6#
- 2.Rxe6#
- 1...Rxe8
- 2.Bf6#
- 2.Qd6#
- 1...Sxh4
- 2.Rxe6#
- 2.Qd6#
- 1...Sxg4
- 2.Rxe6#
- 2.Qd6#
- 1...Rf3
- 2.Qd6#
- 1...Re7
- 2.Bf6#
- 2.Qd6#
- 1...Sf4
- 2.Bf6#
- 2.Qd6#
- 1...Sf8
- 2.Bf6#
- 2.Qd6#
- 1...Sf5
- 2.Bf6#
- 2.Rxf5#
- 2.Rxe6#
- 1...Sf7
- 2.Bf6#
- 2.Rf5#
- 2.Rxe6#
- 1...Sg8
- 2.Rf5#
- 2.Rxe6#
- 2.Qd6#
- 1...c5
- 2.Bf6#
- 2.Rxe6#
- 1...Se7!
- threat
- 1.Qb5+?
- 1...cxb5
- 2.Rd5#
- 1...c5
- 2.Rd5#
- 1...axb5!
- 1...cxb5
- 1.Sd2?
- Keys
- 1.Sf6!
- 1...Rxd3+
- 2.Sxd3#
- 1...Bb2+
- 2.Qxb2#
- 1...Rxf6
- 2.Bxf6#
- 1...Sxh4
- 2.Qf4#
- 1...Sxg4
- 2.Sxg4#
- 1...bxa5
- 2.Qc5#
- 1...Bd7
- 2.Sxd7#
- 1...Re1
- 2.Qxe1#
- 1...Re2
- 2.Rxe2#
- 1...Rf3
- 2.Qe4#
- 1...Rg3
- 2.Qe4#
- 1...Rh3
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rd6
- 2.Qxd6#
- 1...Re7
- 2.Qd6#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 1...Bf7
- 2.Sd7#
- 1...Sf4
- 2.Qxf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...Sf5
- 2.Rxf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...b5
- 2.Qc5#
- 1...c5
- 2.Rd5#
- 1...Rxd3+
- 1.Sf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 0
- Sets
- R(b);CHECK,XP(E)::S(A),XR(b)
- R(b);N_PINP(E),OGATE,XS(G)::QAR1(F),XR(b)
- R(g);N_GUARD::QAB1(F),XR(g)
- R(g);N_GUARD::B(I),XR(g)
- B(a);CHECK,N_GUARD::QAB(F),XB(a)
- B(a);N_GUARD,N_PINP(E)::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- S(i);N_GUARD::R1(C),XS(i)
- S(i);N_GUARD::R1(C)
- P(e);N_GUARD,XP(J)::QAR2(F)
- P(e);N_GUARD::QAR2(F)
- P(f);N_GUARD::R1(K)
- Tries
- Try
- S(G);
- Threat
- S(G)
- Vars
- R(b);CHECK,XP(E)::S(A),XR(b)
- B(a);CHECK,N_GUARD::QAB(F),XB(a)
- R(b);N_GUARD,N_PINP(E)::QAR1(F),XR(b)
- R(g);N_GUARD::QAB1(F),XR(g)
- R(g);N_GUARD::B(I),XR(g)
- P(e);N_GUARD::QAR2(F)
- Refutation
- B(j);
- Try
- S(G);N_SPINP(E)
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,XS(G)::QAB(F),XB(a)
- R(b);N_GUARD::QAR1(F),XR(b)
- R(g);N_GUARD::QAB1(F),XR(g)
- B(j);::P(E)
- S(i);N_GUARD::R1(C),XS(i)
- P(f);N_GUARD::R1(K)
- Refutation
- B(a);CHECK
- Try
- S(G);
- Threat
- S(G)
- Vars
- R(b);CHECK,XP(E)::S(A),XR(b)
- B(a);CHECK,N_GUARD::QAB(F),XB(a)
- R(g);OGATE,XS(G)::QAB1(F),XR(g)
- R(b);N_GUARD::QAR1(F)
- R(b);N_GUARD,N_PINP(E)::QAR1(F),XR(b)
- R(g);N_GUARD::B(I),XR(g)
- R(g);N_GUARD::B(I)
- P(e);N_GUARD::QAR2(F)
- Refutation
- B(j);
- Try
- B(I);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::B(I),XS(h)
- Refutation
- R(b);XB(I)
- Try
- R(K);P_PINR(g),XB(j)
- Threat
- DUALS(3)
- Vars
- R(b);CHECK,XP(E)::S(A),XR(b)
- B(a);CHECK,N_GUARD::QAB(F),XB(a)
- R(b);::QAB1(F)
- Refutation
- S(h);N_SPINR(g)
- Try
- Q(F);CHECK
- Vars
- P(f);N_GUARD,XQ(F)::R1(K)
- P(f);N_GUARD,P_SPINP(f)::R1(K)
- Refutation
- P(d);XQ(F)
- Try
- Actual
- S(G);
- Vars
- R(b);CHECK,XP(E)::S(A),XR(b)
- B(a);CHECK,N_GUARD::QAB(F),XB(a)
- R(g);OGATE,XS(G)::B(I),XR(g)
- S(h);N_GUARD,XB(I)::QAB1(F)
- S(i);XP(H)::S(G),XS(i)
- P(e);N_GUARD,XP(J)::QAR2(F)
- B(j);N_GUARD::S(G),XB(j)
- R(b);N_PINP(E),OGATEB::QAR(F),XR(b)
- R(b);N_PINP(E),OGATEB::R(C),XR(b)
- R(b);N_GUARD::QAR1(F)
- R(b);N_GUARD,N_PINP(E)::QAR1(F),XR(b)
- R(g);N_GUARD::QAB1(F),XR(g)
- R(g);N_GUARD::QAB1(F)
- B(a);N_GUARD,N_PINP(E)::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- B(j);N_GUARD::S(G)
- S(h);N_GUARD::QAB1(F),XS(h)
- S(h);N_GUARD::QAB1(F)
- S(i);N_GUARD::R1(C),XS(i)
- S(i);N_GUARD::R1(C)
- P(e);N_GUARD::QAR2(F)
- P(f);N_GUARD::R1(K)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).