MESON Chess Problem Database
Problem Display
PID: 169331 (1q6/4P1P1/3R4/2pB1pK1/2pk4/2p5/4Q3/8 w - - 0 1)
Muller, Dieter
2nd Comm., SuperProblem 182. TT, 2017
#2
6 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qa7
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qb1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qb2
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qb3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qb4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qb5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qb6
- 2.Bc6#
- 1...Qb7
- 2.Bc6#
- 2.Bxb7#
- 1...Qa8
- 2.Bc6#
- 2.Bb7#
- 2.Bxa8#
- 1...Qc8
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qe8
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qf8
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...Qg8
- 2.Be6#
- 2.Bf7#
- 2.Bxg8#
- 1...Qh8
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.gxh8Q#
- 2.gxh8B#
- 1...f4
- 2.Qe4#
- 1...Qa7
- Tries
- 1.Kf4?
- threat
- 2.Qd1#
- 2.Qxc4#
- 2.Qe3#
- 1...c2
- 2.Qxc4#
- 2.Qd2#
- 2.Qe3#
- 1...Qb1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qxc4#
- 2.Qe3#
- 1...Qb2
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qxc4#
- 2.Qe3#
- 1...Qb3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qe3#
- 1...Qb4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qd1#
- 2.Qe3#
- 1...Qb5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qd1#
- 2.Qe3#
- 1...Qxd6+!
- threat
- 1.Qd1+?
- 1...Ke5
- 2.Re6#
- 1...Ke3!
- 1...Ke5
- 1.Qxc4+?
- 1...Ke5
- 2.Re6#
- 2.Qf4#
- 1...Ke3!
- 1...Ke5
- 1.Qd2+?
- 1...Ke5
- 2.Re6#
- 2.Qf4#
- 1...cxd2!
- 1...Ke5
- 1.Qf2+?
- 1...Ke5
- 2.Qf4#
- 1...Kd3!
- 1...Ke5
- 1.e8Q?
- threat
- 2.Qd1#
- 2.Qxc4#
- 2.Q2e3#
- 2.Q8e3#
- 2.Q8e5#
- 1...Qxd6
- 2.Qd1#
- 2.Qxc4#
- 1...Qxe8
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...c2
- 2.Qxc4#
- 2.Qd2#
- 2.Q2e3#
- 2.Q8e3#
- 2.Q8e5#
- 1...Qb1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qxc4#
- 2.Q2e3#
- 2.Q8e3#
- 2.Q8e5#
- 1...Qb2
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qxc4#
- 2.Q2e3#
- 2.Q8e3#
- 2.Q8e5#
- 1...Qb3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Q2e3#
- 2.Q8e3#
- 2.Q8e5#
- 1...Qb4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qd1#
- 2.Q2e3#
- 2.Q8e3#
- 2.Q8e5#
- 1...Qb5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qd1#
- 2.Q2e3#
- 2.Q8e3#
- 2.Q8e5#
- 1...f4
- 2.Qd1#
- 2.Qxc4#
- 2.Q2e4#
- 2.Q8e4#
- 2.Q8e5#
- 1...Qd8+!
- threat
- 1.e8R?
- threat
- 2.Qd1#
- 2.Qxc4#
- 2.Qe3#
- 1...Qxd6
- 2.Qd1#
- 2.Qxc4#
- 1...Qxe8
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 1...c2
- 2.Qxc4#
- 2.Qd2#
- 2.Qe3#
- 1...Qb1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qxc4#
- 2.Qe3#
- 1...Qb2
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qxc4#
- 2.Qe3#
- 1...Qb3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qe3#
- 1...Qb4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qd1#
- 2.Qe3#
- 1...Qb5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qd1#
- 2.Qe3#
- 1...f4
- 2.Re4#
- 2.Qd1#
- 2.Qxc4#
- 2.Qe4#
- 1...Qd8+!
- threat
- 1.g8Q?
- threat
- 2.Qg7#
- 1...Qxg8+
- 2.Bxg8#
- 1...Qf8
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bxc4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 1...Qxd6!
- threat
- 1.Kf4?
- Keys
- 1.Kxf5!
- threat
- 2.Qe4#
- 1...Qb1+
- 2.Be4#
- 1...Qc8+
- 2.Be6#
- 1...Qf8+
- 2.Bf7#
- 1...c2
- 2.Qd2#
- threat
- 1.Kxf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- Q(f);N_GUARD::R(D)+B(B)
- P(e);N_GUARD::QAR1(A)
- Tries
- Try
- K(C);P_SPINR(D),S_FLIGHT
- Threat
- DUALS(3)
- Refutation
- Q(f);CHECK,XR(D)
- Try
- Q(A);CHECK
- Vars
- K(c);S_FLIGHT::R1(D)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(A);CHECK,XP(b)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(A);CHECK
- Refutation
- P(a);XQ(A)
- Try
- Q(A);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(A)
- Refutation
- K(c);P-FLIGHT
- Try
- P(E);
- Threat
- DUALS(5)
- Refutation
- Q(f);CHECK
- Try
- P(E);
- Threat
- DUALS(3)
- Refutation
- Q(f);CHECK
- Try
- P(F);
- Threat
- QAB(F)
- Vars
- Q(f);CHECK,OGATE,XQ(F)::R(D)+B(B),XQ(f)
- Refutation
- Q(f);XR(D)
- Try
- Actual
- K(C);P-FLIGHT,XP(e)
- Threat
- QAR1(A)
- Vars
- Q(f);CHECK,N_GUARD::R(D)+B(B)
- P(a);N_GUARD::QAR2(A)
Developed and maintained by Brian Stephenson.
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