MESON Chess Problem Database
Problem Display
PID: 264444 (8/8/8/8/q2Q4/5B2/2p1N1K1/4k3 w - - 0 1)
Shanahan, Ian
The Problemist, 1992
#2
4 + 3
SOLUTION
- SOUND
- Tries
- 1.Sc1?
- threat
- 2.Qf2#
- 2.Qc3#
- 2.Qe3#
- 1...Qb3
- 2.Qf2#
- 1...Qb5
- 2.Qf2#
- 2.Qc3#
- 1...Qc6
- 2.Qf2#
- 2.Qe3#
- 1...Qd7
- 2.Qf2#
- 2.Qe3#
- 1...Qe8
- 2.Qf2#
- 2.Qc3#
- 2.Qb4#
- 1...Qa1
- 2.Qf2#
- 2.Qe3#
- 1...Qa3
- 2.Qf2#
- 1...Qb4
- 2.Qf2#
- 2.Qe3#
- 2.Qxb4#
- 1...Qc4
- 2.Qf2#
- 1...Qa5
- 2.Qf2#
- 2.Qe3#
- 1...Qa6
- 2.Qf2#
- 2.Qc3#
- 2.Qb4#
- 1...Qa7
- 2.Qc3#
- 2.Qb4#
- 1...Qxd4!
- threat
- 1.Sg1?
- threat
- 2.Qf2#
- 2.Qc3#
- 2.Qe3#
- 1...c1Q
- 2.Qf2#
- 1...c1S
- 2.Qf2#
- 2.Qc3#
- 1...c1B
- 2.Qf2#
- 1...c1R
- 2.Qf2#
- 2.Qe3#
- 1...Qb3
- 2.Qf2#
- 1...Qb5
- 2.Qf2#
- 2.Qc3#
- 1...Qc6
- 2.Qf2#
- 2.Qe3#
- 1...Qd7
- 2.Qf2#
- 2.Qe3#
- 1...Qe8
- 2.Qf2#
- 2.Qc3#
- 2.Qb4#
- 1...Qa1
- 2.Qf2#
- 2.Qe3#
- 1...Qa3
- 2.Qf2#
- 1...Qb4
- 2.Qf2#
- 2.Qe3#
- 2.Qxb4#
- 1...Qc4
- 2.Qf2#
- 1...Qa5
- 2.Qf2#
- 2.Qe3#
- 1...Qa6
- 2.Qf2#
- 2.Qc3#
- 2.Qb4#
- 1...Qa7
- 2.Qc3#
- 2.Qb4#
- 1...Qxd4!
- threat
- 1.Sg3?
- threat
- 2.Qf2#
- 2.Qc3#
- 2.Qe3#
- 1...c1Q
- 2.Qf2#
- 1...c1S
- 2.Qf2#
- 2.Qc3#
- 1...c1B
- 2.Qf2#
- 1...c1R
- 2.Qf2#
- 2.Qe3#
- 1...Qb3
- 2.Qf2#
- 1...Qb5
- 2.Qf2#
- 2.Qc3#
- 1...Qc6
- 2.Qf2#
- 2.Qe3#
- 1...Qd7
- 2.Qf2#
- 2.Qe3#
- 1...Qe8
- 2.Qf2#
- 2.Qc3#
- 2.Qb4#
- 1...Qa1
- 2.Qf2#
- 2.Qe3#
- 1...Qa3
- 2.Qf2#
- 1...Qb4
- 2.Qf2#
- 2.Qe3#
- 2.Qxb4#
- 1...Qc4
- 2.Qf2#
- 1...Qa5
- 2.Qf2#
- 2.Qe3#
- 1...Qa6
- 2.Qf2#
- 2.Qc3#
- 2.Qb4#
- 1...Qa7
- 2.Qc3#
- 2.Qb4#
- 1...Qxd4!
- threat
- 1.Sf4?
- threat
- 2.Qf2#
- 2.Qc3#
- 2.Qe3#
- 1...c1Q
- 2.Qf2#
- 1...c1S
- 2.Qf2#
- 2.Qc3#
- 1...c1B
- 2.Qf2#
- 1...c1R
- 2.Qf2#
- 2.Qe3#
- 1...Qb3
- 2.Qf2#
- 1...Qb5
- 2.Qf2#
- 2.Qc3#
- 1...Qc6
- 2.Qf2#
- 2.Qe3#
- 1...Qd7
- 2.Qf2#
- 2.Qe3#
- 1...Qe8
- 2.Qf2#
- 2.Qc3#
- 2.Qb4#
- 1...Qa1
- 2.Qf2#
- 2.Qe3#
- 1...Qa3
- 2.Qf2#
- 1...Qb4
- 2.Qf2#
- 2.Qe3#
- 2.Qxb4#
- 1...Qc4
- 2.Qf2#
- 1...Qa5
- 2.Qf2#
- 2.Qe3#
- 1...Qa6
- 2.Qf2#
- 2.Qc3#
- 2.Qb4#
- 1...Qa7
- 2.Qc3#
- 2.Qb4#
- 1...Qxd4!
- threat
- 1.Sc1?
- Keys
- 1.Qe3!
- threat
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 2.Qc1#
- 1...Qg4+
- 2.Sg3#
- 1...Kd1
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 2.Qc1#
- 1...c1Q
- 2.Sxc1#
- 1...c1S
- 2.Sxc1#
- 1...c1B
- 2.Sxc1#
- 1...c1R
- 2.Sxc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Qb3
- 2.Sc3#
- 2.Qc1#
- 1...Qb5
- 2.Qc1#
- 1...Qd7
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Qe8
- 2.Qc1#
- 1...Qa1
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Qa3
- 2.Sc3#
- 1...Qc4
- 2.Qc1#
- 1...Qd4
- 2.Sxd4#
- 1...Qe4
- 2.Qc1#
- 1...Qf4
- 2.Sxf4#
- 1...Qa6
- 2.Qc1#
- 1...Qa7
- 2.Sd4#
- 2.Qc1#
- threat
- 1.Qe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(A);
- Threat
- DUALS(3)
- Vars
- Q(c);::QAB1(D)
- Refutation
- Q(c);XQ(D)
- Try
- S(A);
- Threat
- DUALS(3)
- Vars
- P(b);::QAB1(D)
- Q(c);::QAB1(D)
- Refutation
- Q(c);XQ(D)
- Try
- S(A);
- Threat
- DUALS(3)
- Vars
- P(b);::QAB1(D)
- Q(c);::QAB1(D)
- Refutation
- Q(c);XQ(D)
- Try
- S(A);
- Threat
- DUALS(3)
- Vars
- P(b);::QAB1(D)
- Q(c);::QAB1(D)
- Refutation
- Q(c);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- DUALS(7)
- Vars
- Q(c);CHECK::QAR(D)+S(A)
- P(b);::QAR(D)+S(A),XQ(b)
- P(b);::QAR(D)+S(A),XS(b)
- P(b);::QAR(D)+S(A),XB(b)
- Q(c);::QAR2(D)
- Q(c);::QAR(D)+S(A)
- Q(c);::QAR(D)+S(A),XQ(c)
- Q(c);P_PINB(C)::QAR2(D)
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