MESON Chess Problem Database
Problem Display
PID: 250776 (3b3K/4BP2/7k/4R2n/7N/q3N1p1/2r4Q/1B1b1rR1 w - - 0 1)
Richter, Frank
1st Comm., Thessalonika-2300 JT, 1986-1988
#2
9 + 8
| 14867 | BCPS Library | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sef5#
- 1...Rxg1
- 2.Sef5#
- 1...Rf3
- 2.Sg4#
- 1...Rf5
- 2.Sexf5#
- 1...Re2
- 2.Sg4#
- 1...Bf3
- 2.Sef5#
- 1...Bg4
- 2.Sxg4#
- 1...Ba5
- 2.Bg5#
- 1...Bb6
- 2.Bg5#
- 1...Bc7
- 2.Bg5#
- 1...Sf4
- 2.f8Q#
- 2.f8B#
- 1...Sf6
- 2.f8Q#
- 2.f8B#
- 1...gxh2
- 2.Rg6#
- 1...Re1
- Tries
- 1.Bf8+?
- 1...Sg7
- 2.Bxg7#
- 1...Qxf8+!
- 1...Sg7
- 1.Qxc2?
- threat
- 2.Qg6#
- 2.Qh7#
- 1...Rxf7
- 2.Qg6#
- 1...Bxc2
- 2.Sg4#
- 1...Qd6
- 2.Qh7#
- 1...Qa6
- 2.Qh7#
- 1...Rf5
- 2.Sexf5#
- 1...Rf6
- 2.Qh7#
- 1...Sf4
- 2.Qh7#
- 2.f8Q#
- 2.f8B#
- 1...Sf6
- 2.Qg6#
- 2.f8Q#
- 2.f8B#
- 1...Qd3!
- threat
- 1.Qe2?
- threat
- 2.Sg4#
- 2.Rxh5#
- 1...Qxe3
- 2.Rxh5#
- 1...Rxe2
- 2.Sg4#
- 1...Qb2
- 2.Sg4#
- 1...Qb4
- 2.Rxh5#
- 1...Qc5
- 2.Sg4#
- 1...Qa1
- 2.Sg4#
- 1...Qc3
- 2.Sg4#
- 1...Qa4
- 2.Rxh5#
- 1...Qa5
- 2.Sg4#
- 1...Rf3
- 2.Sg4#
- 1...Rf4
- 2.Rxh5#
- 1...Rf5
- 2.Sg4#
- 2.Sexf5#
- 1...Rc4
- 2.Rxh5#
- 1...Rc5
- 2.Sg4#
- 1...Sf4
- 2.Sg4#
- 2.Sef5#
- 2.f8Q#
- 2.f8B#
- 1...Sf6
- 2.f8Q#
- 2.f8B#
- 1...Sg7
- 2.Sg4#
- 1...Bxe2!
- threat
- 1.f8Q+?
- 1...Sg7
- 2.Qxg7#
- 1...Rxf8+!
- 1...Sg7
- 1.f8B+?
- 1...Sg7
- 2.Bxg7#
- 1...Rxf8+!
- 1...Sg7
- 1.Bf8+?
- Keys
- 1.Sf3!
- threat
- 2.Re6#
- 2.Qxh5#
- 1...Kg6
- 2.Qxh5#
- 1...Qxe7
- 2.Qxh5#
- 1...Qxe3
- 2.Qxh5#
- 1...Rxf3
- 2.Qxh5#
- 1...Rxh2
- 2.Sg4#
- 1...Bxf3
- 2.Re6#
- 1...Bxe7
- 2.Qxh5#
- 1...gxh2
- 2.Sf5#
- 1...Qb2
- 2.Qxh5#
- 1...Qd6
- 2.Qxh5#
- 1...Qa1
- 2.Qxh5#
- 1...Qa2
- 2.Qxh5#
- 1...Qb3
- 2.Qxh5#
- 1...Qc3
- 2.Qxh5#
- 1...Qd3
- 2.Qxh5#
- 1...Qa6
- 2.Qxh5#
- 1...Rc6
- 2.Sg4#
- 2.Rxh5#
- 2.Qxh5#
- 2.f8Q#
- 2.f8B#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 13
- REMOVED MATES = 8
- Sets
- R(b);N_GUARD::S(D)
- R(b);N_GUARD,XR(B)::S(D)
- R(b);S_CUTB(a)::S(D)
- R(b);N_GUARD::S(D),XR(b)
- R(c);S_CUTB(a)::S(D)
- B(a);S_CUTR(b)::S(D)
- B(a);N_GUARD::S(D),XB(a)
- B(h);N_GUARD::B(G)
- S(f);N_GUARD,S_CUTR(b)::P=Q
- P(e);OGATE,XQ(C)::R1(B)
- Tries
- Try
- B(G);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::B(G),XS(f)
- Refutation
- Q(d);CHECK,XB(G)
- Try
- Q(C);XR(c)
- Threat
- DUALS(2)
- Vars
- R(b);XP(H)::QAR1(C)
- B(a);N_GUARD,XQ(C)::S(D)
- Q(d);::QAR1(C)
- Q(d);SBLOCK::QAR1(C)
- R(b);N_GUARD::S(D),XR(b)
- R(b);::QAR1(C)
- Refutation
- Q(d);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(d);XS(D)::R1(F),XS(f)
- R(c);XQ(C)::S(D)
- Q(d);P_PINR(F)::S(D)
- Q(d);::R1(F),XS(f)
- Q(d);::S(D)
- R(b);::S(D)
- R(b);::R1(F),XS(f)
- R(c);::R1(F),XS(f)
- R(c);::S(D)
- S(f);N_GUARD,S_CUTR(b)::P=Q
- S(f);::S(D)
- Refutation
- B(a);XQ(C)
- Try
- P(H);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAB1(H),XS(f)
- Refutation
- R(b);CHECK,XQ(H)
- Try
- P(H);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::B(H),XS(f)
- Refutation
- R(b);CHECK,XB(H)
- Try
- Actual
- S(E);P_PINS(f)
- Threat
- DUALS(2)
- Vars
- K(g);N_SPINS(f),P-FLIGHT,P_SPINP(e),P_SPINR(c)::QAB1(C),XS(f)
- Q(d);XB(G)::QAR1(C),XS(f)
- Q(d);XS(D)::QAR1(C),XS(f)
- R(b);XS(E)::QAR1(C),XS(f)
- R(c);N_SPINS(f),XQ(C)::S(D)
- B(a);XS(E)::R(F)
- B(h);XB(G)::QAR1(C),XS(f)
- P(e);N_SPINS(f),XQ(C)::S(D)
- Q(d);P_PINR(F)::QAR1(C),XS(f)
- Q(d);::QAR1(C),XS(f)
- Q(d);SBLOCK::QAR1(C),XS(f)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).