MESON Chess Problem Database
Problem Display
PID: 85444 (8/1r1p4/B1Rb4/3QPkNK/r5Np/8/b7/2R1q3 w - - 0 1)
Muller, Dieter
Canadian Chess Chat, 1980
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Qf3#
- 1...Rc4
- 2.Qf7#
- 1...Rf4
- 2.Sh6#
- 1...Ra5
- 2.Qf3#
- 1...Rxa6
- 2.Qf3#
- 1...Rb3
- 2.Qf7#
- 1...Bb1
- 2.Qf7#
- 1...Bc4
- 2.Qf3#
- 1...Ba3
- 2.Rf6#
- 1...Bb4
- 2.Rf6#
- 2.Qf3#
- 1...Bc5
- 2.Rf6#
- 1...Bxe5
- 2.Rf6#
- 1...Bc7
- 2.Rf6#
- 1...Bb8
- 2.Rf6#
- 1...Bf8
- 2.Rf6#
- 1...Kf4
- Tries
- 1.Bd3+?
- 1...Kf4
- 2.Qf3#
- 1...Qe4
- 2.Rf1#
- 1...Re4!
- 1...Kf4
- 1.R1c4?
- threat
- 2.Sh6#
- 2.Qf3#
- 2.Qf7#
- 1...Rxc4
- 2.Qf7#
- 1...Bxc4
- 2.Qf3#
- 1...Bxe5
- 2.Sh6#
- 2.Rf6#
- 1...dxc6
- 2.Sh6#
- 2.Qf3#
- 2.Qe6#
- 1...Qe4
- 2.Qxe4#
- 2.Qf7#
- 1...Qd2
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 1...Qf2
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 2.Qd3#
- 2.exd6#
- 1...Qc3
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 1...Qg3
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 1...Qc1
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 2.Qd3#
- 2.exd6#
- 1...Qd1
- 2.Qe4#
- 2.Qf7#
- 1...Qf1
- 2.Se3#
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 2.exd6#
- 1...Qh1
- 2.Se3#
- 2.Sh6#
- 2.Qf7#
- 1...Qe2
- 2.Qf7#
- 1...Qe3
- 2.Sxe3#
- 2.Sh6#
- 2.Qf7#
- 1...Ra3
- 2.Sh6#
- 2.Qf7#
- 1...Rb3
- 2.Sh6#
- 2.Qf7#
- 1...Be7
- 2.Sh6#
- 2.Qf3#
- 1...Bf8
- 2.Rf6#
- 2.Qf3#
- 2.Qf7#
- 1...Qxe5!
- threat
- 1.R6c4?
- threat
- 2.Sh6#
- 2.Qf3#
- 2.Qf7#
- 1...Qxc1
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 2.Qd3#
- 2.exd6#
- 1...Qxe5
- 2.Rf1#
- 1...Rxc4
- 2.Qf7#
- 1...Bxc4
- 2.Qf3#
- 1...Qe4
- 2.Qxe4#
- 2.Qf7#
- 1...Qd2
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 1...Qf2
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 2.Qd3#
- 2.exd6#
- 1...Qc3
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 1...Qg3
- 2.Sh6#
- 2.Qe4#
- 2.Qf7#
- 1...Qd1
- 2.Qe4#
- 2.Qf7#
- 1...Qf1
- 2.Se3#
- 2.Sh6#
- 2.Rxf1#
- 2.Qe4#
- 2.Qf7#
- 2.exd6#
- 1...Qh1
- 2.Se3#
- 2.Sh6#
- 2.Qf7#
- 1...Qe2
- 2.Qf7#
- 1...Qe3
- 2.Sxe3#
- 2.Sh6#
- 2.Qf7#
- 1...Ra3
- 2.Sh6#
- 2.Qf7#
- 1...Rb3
- 2.Sh6#
- 2.Qf7#
- 1...Be7
- 2.Sh6#
- 2.Qf3#
- 1...Bf8
- 2.Qf3#
- 2.Qf7#
- 1...Bxe5!
- threat
- 1.Rxd6?
- threat
- 2.Rf6#
- 1...Kf4
- 2.Qf3#
- 1...Rxa6
- 2.Qf3#
- 1...Rb6!
- threat
- 1.Qd3+?
- 1...Kf4
- 2.Sh3#
- 2.Qf3#
- 1...Qe4
- 2.Rf1#
- 1...Re4!
- 1...Kf4
- 1.exd6+?
- 1...Kf4
- 2.Qf3#
- 1...Qe5
- 2.Qxe5#
- 1...Bxd5!
- 1...Kf4
- 1.Bd3+?
- Keys
- 1.Bc4!
- threat
- 2.Qf3#
- 2.Qf7#
- 1...Kf4
- 2.Qf3#
- 1...Qxc1
- 2.Qe4#
- 2.Qf7#
- 1...Qxe5
- 2.Rf1#
- 1...Rxc4
- 2.Qf7#
- 1...Bxc4
- 2.Qf3#
- 1...Bxe5
- 2.Rf6#
- 1...dxc6
- 2.Qf3#
- 1...Qd2
- 2.Qe4#
- 2.Qf7#
- 1...Qf2
- 2.Qe4#
- 2.Qf7#
- 1...Qc3
- 2.Qe4#
- 2.Qf7#
- 1...Qg3
- 2.Qe4#
- 2.Qf7#
- 1...Qd1
- 2.Qe4#
- 2.Qf7#
- 1...Qf1
- 2.Rxf1#
- 2.Qe4#
- 2.Qf7#
- 1...Qh1
- 2.Qf7#
- 1...Qe2
- 2.Qf7#
- 1...Qe3
- 2.Qf7#
- 1...Qe4
- 2.Qxe4#
- 2.Qf7#
- 1...Ra3
- 2.Qf7#
- 1...Rb3
- 2.Qf7#
- 1...Be7
- 2.Qf3#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 9
- Sets
- K(e);P-FLIGHT::QAR1(C)
- R(c);S_CUTB(b)::QAR2(C)
- R(c);SBLOCK::S(B)
- R(c);N_GUARD::QAR2(C)
- R(c);N_GUARD,XB(G)::QAR2(C)
- R(g);S_CUTB(b)::QAR2(C)
- B(b);N_GUARD::QAR2(C)
- B(b);S_CUTR(c)::QAR2(C)
- B(f);OGATE::R1(H)
- B(f);OGATE,P_SPINB(f),XP(D)::R1(H)
- Tries
- Try
- B(G);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(C)
- Q(a);OGATE,P_SPINQ(a)::R(A)
- Refutation
- R(c);P_SPINR(c)
- Try
- R(A);
- Threat
- DUALS(3)
- Vars
- R(c);XR(A)::QAR2(C)
- B(b);XR(A)::QAR2(C)
- Q(a);P_PINS(B)::QAR2(C)
- Refutation
- Q(a);P_SPINQ(a),XP(D)
- Try
- R(H);
- Threat
- DUALS(3)
- Vars
- Q(a);OGATE,P_SPINQ(a),XP(D)::R(A)
- R(c);XR(H)::QAR2(C)
- B(b);XR(H)::QAR2(C)
- Q(a);P_PINS(B)::QAR2(C)
- Refutation
- B(f);P_SPINB(f),XP(D)
- Try
- R(H);XB(f)
- Threat
- R1(H)
- Vars
- K(e);P-FLIGHT::QAR1(C)
- R(c);N_GUARD,XB(G)::QAR2(C)
- Refutation
- R(g);
- Try
- Q(C);CHECK
- Vars
- Q(a);OGATE,P_SPINQ(a)::R(A)
- Refutation
- R(c);P_SPINR(c)
- Try
- P(D);CHECK,XB(f)
- Vars
- K(e);P-FLIGHT::QAR1(C)
- Q(a);N_GUARD,P_SPINQ(a)::QAR1(C),XQ(a)
- Refutation
- B(b);XQ(C)
- Try
- Actual
- B(G);
- Threat
- DUALS(2)
- Vars
- K(e);P-FLIGHT::QAR1(C)
- Q(a);OGATE,P_SPINQ(a),XP(D)::R(A)
- R(c);XB(G)::QAR2(C)
- B(b);XB(G)::QAR2(C)
- B(f);OGATE,P_SPINB(f),XP(D)::R1(H)
- P(h);XR(H)::QAR2(C)
- Q(a);::QAR2(C)
- Q(a);P_PINS(B)::QAR2(C)
- R(c);::QAR2(C)
- R(g);::QAR2(C)
- B(f);::QAR2(C)
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