MESON Chess Problem Database
Problem Display
PID: 262683 (6bB/4pR1p/2r1k2K/1N3NpB/1b3R2/3Q1p2/q4p2/3nr3 w - - 0 1)
Lipton, Michael
The Problemist, 1985
#2
8 + 12
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Re4#
- 1...Rg1
- 2.Re4#
- 1...Rh1
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Re5
- 2.Sg7#
- 1...Rc5
- 2.Rxe7#
- 1...Ra6
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Rd6
- 2.Rxe7#
- 1...Rc7
- 2.Sxc7#
- 1...Bd2
- 2.Rxe7#
- 1...Bc3
- 2.Rxe7#
- 1...Ba5
- 2.Rxe7#
- 1...Se3
- 2.Re4#
- 1...Rf1
- Tries
- 1.Se3?
- threat
- 2.Bg4#
- 2.Re4#
- 2.Qf5#
- 1...Rxe3
- 2.Bg4#
- 2.Qf5#
- 1...Sxe3
- 2.Re4#
- 1...gxf4
- 2.Qf5#
- 1...Qd5
- 2.Qxd5#
- 1...Rd6
- 2.Bg4#
- 2.Qf5#
- 1...Bd6
- 2.Bg4#
- 2.Qf5#
- 1...Qb1
- 2.Bg4#
- 2.Re4#
- 2.Qd5#
- 1...Qc4
- 2.Bg4#
- 2.Qf5#
- 1...Qa1
- 2.Bg4#
- 2.Qf5#
- 2.Qd5#
- 1...Qb2
- 2.Bg4#
- 2.Qf5#
- 2.Qd5#
- 1...Qc2
- 2.Bg4#
- 2.Re4#
- 2.Qd5#
- 1...Rg1
- 2.Re4#
- 2.Qf5#
- 1...Rh1
- 2.Re4#
- 2.Qf5#
- 1...Rc4
- 2.Bg4#
- 2.Qf5#
- 2.Qd5#
- 1...Bc3
- 2.Bg4#
- 2.Qf5#
- 1...Sc3
- 2.Bg4#
- 2.Qf5#
- 1...g4
- 2.Bxg4#
- 2.Re4#
- 2.Qf5#
- 1...Rc5!
- threat
- 1.Sxe7?
- threat
- 2.Bg4#
- 2.Qf5#
- 1...gxf4
- 2.Qf5#
- 1...Qd5
- 2.Qxd5#
- 1...Re5
- 2.R4f6#
- 1...Qb1
- 2.Bg4#
- 2.Qd5#
- 1...Qc2
- 2.Bg4#
- 2.Qd5#
- 1...Rg1
- 2.Re4#
- 2.Qf5#
- 1...Rh1
- 2.Re4#
- 2.Qf5#
- 1...Re4
- 2.Bg4#
- 2.Rxe4#
- 1...Rc5
- 2.Qd6#
- 1...Se3
- 2.Re4#
- 1...g4
- 2.Bxg4#
- 2.Qf5#
- 1...Bxf7!
- threat
- 1.Rf6+?
- 1...Ke5
- 2.Qd4#
- 1...exf6!
- 1...Ke5
- 1.Se3?
- Keys
- 1.Bg4!
- threat
- 2.Se3#
- 2.Sg3#
- 2.Sh4#
- 2.Sfd6#
- 2.Sxe7#
- 1...Kxf7+
- 2.Sfd6#
- 1...Rh1+
- 2.Sh4#
- 1...Bxf7
- 2.Se3#
- 2.Sg3#
- 2.Sh4#
- 2.Sfd6#
- 1...gxf4
- 2.Sfd6#
- 1...Qd5
- 2.Sfd4#
- 1...Rd6
- 2.Se3#
- 2.Sg3#
- 2.Sh4#
- 2.Sfxd6#
- 2.Sxe7#
- 2.Rxe7#
- 1...Bd6
- 2.Se3#
- 2.Sg3#
- 2.Sh4#
- 2.Sfxd6#
- 2.Sxe7#
- 1...Re5
- 2.Sg7#
- 1...Rg1
- 2.Sg3#
- 1...Re3
- 2.Sxe3#
- 2.Sg3#
- 2.Sh4#
- 2.Sfd6#
- 2.Sxe7#
- 1...Rc5
- 2.Rxe7#
- 1...Se3
- 2.Sxe3#
- threat
- 1.Bg4!
This is after
After E. W. Beal.
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::R(B)
- R(b);N_GUARD,P_PINB(E)::R(B)
- R(b);N_GUARD::R(B),XR(b)
- R(b);SBLOCK::S(D)
- R(h);S_CUTB(f)::R1(G),XP(j)
- R(h);N_GUARD::S(C)
- R(h);N_GUARD::S(C),XR(h)
- B(f);N_GUARD::R1(G),XP(j)
- S(a);S_CUTR(b)::R(B)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(a);XS(D)::R(B)
- P(g);XR(B)::QAB1(A)
- Q(c);N_GUARD::QAB1(A),XQ(c)
- Refutation
- R(h);
- Try
- S(D);XP(j)
- Threat
- DUALS(2)
- Vars
- P(g);XR(B)::QAB1(A)
- Q(c);N_GUARD::QAB1(A),XQ(c)
- R(b);SBLOCK::R1(B)
- R(h);N_GUARD,S_CUTB(f)::QAR1(A)
- S(a);S_CUTR(b)::R(B)
- Refutation
- B(l);XR(G)
- Try
- R(G);CHECK
- Vars
- K(i);P-FLIGHT,P_PINR(G),S_CUTP(j)::QAB1(A)
- Refutation
- P(j);XR(G)
- Try
- Actual
- B(E);
- Threat
- DUALS(5)
- Vars
- K(i);CHECK,S_FLIGHT,XR(G)::R(B)+S(D),DCHECK
- R(b);CHECK::B(E)+S(D)
- P(g);XR(B)::B(E)+S(D)
- Q(c);SBLOCK::B(E)+S(D),DCHECK
- R(b);SBLOCK::B(E)+S(D),DCHECK
- R(b);::B(E)+S(D)
- R(h);S_CUTB(f)::R1(G),XP(j)
- S(a);::B(E)+S(D),XS(a)
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