MESON Chess Problem Database
Problem Display
PID: 82081 (2r5/b3q2n/R2pP1R1/3Nk2p/1PB1P2B/6P1/K4N2/3Q3n w - - 0 1)
Ahues, Herbert Siegfried Oskar
Die Schwalbe, 1960
#2
12 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Qa1#
- 1...Bb8
- 2.Qa1#
- 1...Sxg3
- 2.Bxg3#
- 1...Rc5
- Tries
- 1.Sg4+?
- 1...Kxe4
- 2.Qd3#
- 1...hxg4!
- 1...Kxe4
- 1.Sc3?
- threat
- 2.Qd5#
- 1...Qxe6
- 2.Rxe6#
- 1...Sxg3
- 2.Bxg3#
- 1...Qb7
- 2.Qxd6#
- 1...Bd4
- 2.Sd3#
- 1...Sf6
- 2.Rg5#
- 1...d5
- 2.Qxd5#
- 1...Rc5!
- threat
- 1.Se3?
- threat
- 2.Qd5#
- 1...Qxe6
- 2.Rxe6#
- 1...Sxg3
- 2.Bxg3#
- 1...Qb7
- 2.Qxd6#
- 1...Rc5
- 2.Qa1#
- 1...Sf6
- 2.Rg5#
- 1...d5
- 2.Qxd5#
- 1...Bd4!
- threat
- 1.Sf4?
- threat
- 2.Qd5#
- 1...Qxe6
- 2.Rxe6#
- 1...Qb7
- 2.Qxd6#
- 1...Rc5
- 2.Qa1#
- 1...Bd4
- 2.S4d3#
- 1...Sf6
- 2.Rg5#
- 1...d5
- 2.Qxd5#
- 1...Sxg3!
- threat
- 1.Sf6?
- threat
- 2.Qd5#
- 1...Sxg3
- 2.Bxg3#
- 1...Sxf6
- 2.Rg5#
- 1...Qb7
- 2.Qxd6#
- 1...Rc5
- 2.Qa1#
- 1...Bd4
- 2.Sd3#
- 1...d5
- 2.Qxd5#
- 1...Qxe6!
- threat
- 1.Sc7?
- threat
- 2.Qd5#
- 1...Qxe6
- 2.Rxe6#
- 1...Sxg3
- 2.Bxg3#
- 1...Sf6
- 2.Rg5#
- 1...d5
- 2.Qxd5#
- 1...Bd4!
- threat
- 1.Sxe7?
- threat
- 2.Qd5#
- 2.Qxd6#
- 1...Bxf2
- 2.Qd5#
- 1...Sxf2
- 2.Qd5#
- 1...Sxg3
- 2.Bxg3#
- 2.Qxd6#
- 1...Rc5
- 2.Qa1#
- 2.Qxd6#
- 1...Rc6
- 2.Sxc6#
- 2.Qd5#
- 1...Rd8
- 2.Sc6#
- 2.Qd5#
- 1...Bc5
- 2.Qd5#
- 1...Bb6
- 2.Qd5#
- 1...Bb8
- 2.Qa1#
- 2.Qd5#
- 1...Sf6
- 2.Bxf6#
- 2.Rg5#
- 2.Qxd6#
- 1...d5
- 2.Qxd5#
- 1...Bd4!
- threat
- 1.Sg4+?
- Keys
- 1.Sb6!
- threat
- 2.Qa1#
- 2.Qd5#
- 1...Qxe6
- 2.Rxe6#
- 2.Qa1#
- 1...Rxc4
- 2.Sxc4#
- 2.Qd5#
- 1...Bxb6
- 2.Qd5#
- 1...Sxf2
- 2.Qd5#
- 1...Sxg3
- 2.Bxg3#
- 1...d5
- 2.Qxd5#
- 1...Qb7
- 2.Qa1#
- 1...Rc5
- 2.Qa1#
- 1...Sf6
- 2.Rg5#
- 2.Qa1#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(h);S_CUTB(e)::QAB(A)
- B(e);N_GUARD::QAB(A)
- S(a);OGATE,XP(D)::B(H),XS(a)
- Tries
- Try
- S(C);CHECK
- Vars
- K(b);P-FLIGHT,XP(G)::QAB1(A)
- Refutation
- P(c);XS(C)
- Try
- S(I);
- Threat
- QAR1(A)
- Vars
- Q(f);OGATE,P_PINB(F),XP(K)::R1(L),XQ(f)
- S(a);OGATE,XP(D)::B(H),XS(a)
- Q(f);N_GUARD::QAB1(A),XP(d)
- B(e);SBLOCK::S(C)
- S(g);N_GUARD,SBLOCK,S_CUTQ(f)::R(L)
- P(d);::QAR1(A),XP(d)
- Refutation
- R(h);
- Try
- S(I);
- Threat
- QAR1(A)
- Vars
- Q(f);OGATE,P_PINB(F),XP(K)::R1(L),XQ(f)
- S(a);OGATE,XP(D)::B(H),XS(a)
- Q(f);N_GUARD::QAB1(A),XP(d)
- R(h);S_CUTB(e)::QAB(A)
- S(g);N_GUARD,SBLOCK,S_CUTQ(f)::R(L)
- P(d);::QAR1(A),XP(d)
- Refutation
- B(e);
- Try
- S(I);
- Threat
- QAR1(A)
- Vars
- Q(f);OGATE,P_PINB(F),XP(K)::R1(L),XQ(f)
- Q(f);N_GUARD::QAB1(A),XP(d)
- R(h);S_CUTB(e)::QAB(A)
- B(e);SBLOCK::S(I)
- S(g);N_GUARD,SBLOCK,S_CUTQ(f)::R(L)
- P(d);::QAR1(A),XP(d)
- Refutation
- S(a);XP(D)
- Try
- S(I);
- Threat
- QAR1(A)
- Vars
- S(a);OGATE,XP(D)::B(H),XS(a)
- S(g);N_GUARD,SBLOCK,XS(I)::R(L)
- Q(f);N_GUARD::QAB1(A),XP(d)
- R(h);S_CUTB(e)::QAB(A)
- B(e);SBLOCK::S(C)
- P(d);::QAR1(A),XP(d)
- Refutation
- Q(f);P_PINB(F),XP(K)
- Try
- S(I);
- Threat
- QAR1(A)
- Vars
- Q(f);OGATE,P_PINB(F),XP(K)::R1(L),XQ(f)
- S(a);OGATE,XP(D)::B(H),XS(a)
- S(g);N_GUARD,SBLOCK,S_CUTQ(f)::R(L)
- P(d);::QAR1(A),XP(d)
- Refutation
- B(e);
- Try
- S(I);XQ(f)
- Threat
- DUALS(2)
- Vars
- B(e);XS(C)::QAR1(A)
- S(a);XS(C)::QAR1(A)
- B(e);::QAR1(A)
- P(d);::QAR1(A),XP(d)
- Refutation
- B(e);
- Try
- Actual
- S(I);
- Threat
- DUALS(2)
- Vars
- B(e);XS(I)::QAR1(A)
- S(a);XS(C)::QAR1(A)
- S(a);OGATE,XP(D)::B(H),XS(a)
- P(d);::QAR1(A),XP(d)
- Q(f);::QAB(A)
- R(h);::QAB(A)
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