MESON Chess Problem Database
Problem Display
PID: 80989 (3B2R1/1p2q1n1/4R2r/4pP1p/p3Pk1p/5P2/1Q1P4/1K2NN1B w - - 0 1)
Hirschenson, Aaron
3rd HM., Mat Plus Challenge No. 1, 1998
#2
12 + 9
| 5929 | Mat Plus Special Issue | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Qa3
- 2.Qxe5#
- 1...Qb4
- 2.Sd3#
- 1...Qc5
- 2.Sd3#
- 1...Qg5
- 2.Sd3#
- 2.Qxe5#
- 1...Qf8
- 2.Sd3#
- 2.Qxe5#
- 1...Qxe6
- 2.Sd3#
- 1...Qc7
- 2.Sd3#
- 1...Qd7
- 2.Qxe5#
- 1...Qf7
- 2.Sd3#
- 2.Qxe5#
- 1...Qe8
- 2.Sd3#
- 2.Qxe5#
- 1...Sxf5
- 2.Sd3#
- 2.Qxe5#
- 1...Sxe6
- 2.Sd3#
- 1...Se8
- 2.Sd3#
- 2.Qxe5#
- 1...Qa3
- Tries
- 1.Bxe7?
- threat
- 2.Sd3#
- 2.Qxe5#
- 1...Rxe6
- 2.Sd3#
- 1...Sxe6
- 2.Sd3#
- 1...Rf6!
- threat
- 1.Rxg7?
- threat
- 2.Sd3#
- 2.Qxe5#
- 1...Qxd8
- 2.Qxe5#
- 1...Qxe6
- 2.Sd3#
- 2.Bg5#
- 1...Qxg7
- 2.Sd3#
- 1...Rxe6
- 2.Sd3#
- 1...Qa3
- 2.Bg5#
- 2.Qxe5#
- 1...Qb4
- 2.Sd3#
- 2.Bg5#
- 1...Qc5
- 2.Sd3#
- 2.Bg5#
- 1...Qd6
- 2.Bg5#
- 1...Qf6
- 2.Sd3#
- 1...Qc7
- 2.Sd3#
- 2.Bg5#
- 1...Qd7
- 2.Bg5#
- 2.Qxe5#
- 1...Rg6!
- threat
- 1.Qc3?
- threat
- 2.Qe3#
- 1...Kg5
- 2.Qe3#
- 1...Sxf5
- 2.Sg2#
- 2.Sd3#
- 2.Qxe5#
- 1...Qa3
- 2.Sg2#
- 2.Sd3#
- 2.Qxe5#
- 1...Qc5
- 2.Sg2#
- 2.Sd3#
- 1...Qb4+!
- threat
- 1.Qb3?
- threat
- 2.Qe3#
- 1...Kg5
- 2.Qe3#
- 1...Sxf5
- 2.Sg2#
- 2.Sd3#
- 1...Qa3
- 2.Sg2#
- 2.Sd3#
- 1...Qb4
- 2.Sg2#
- 2.Sd3#
- 1...Qc5
- 2.Sg2#
- 2.Sd3#
- 1...axb3!
- threat
- 1.d3?
- threat
- 2.Qc1#
- 2.Qd2#
- 1...Kg5
- 2.Qc1#
- 2.Qd2#
- 1...Sxf5
- 2.Qxe5#
- 1...Qa3
- 2.Qxe5#
- 2.Qd2#
- 2.Qh2#
- 1...Qc5
- 2.Qh2#
- 1...Qc7
- 2.Qd2#
- 2.Qh2#
- 1...Qb4!
- threat
- 1.Bxe7?
- Keys
- 1.d4!
- threat
- 2.Qc1#
- 2.Qd2#
- 1...Kg5
- 2.Qc1#
- 2.Qd2#
- 1...Sxf5
- 2.Sd3#
- 1...Qa3
- 2.Qh2#
- 1...Qb4
- 2.Sd3#
- 1...Qc5
- 2.Sd3#
- 2.Qd2#
- 2.Qh2#
- 1...Qc7
- 2.Sd3#
- 2.Qd2#
- 2.Qh2#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- Q(h);::QAB1(E),XP(d)
- Q(h);P_PINQ(E)::S(B)
- Q(h);::S(B)
- Q(h);XR(J)::S(B)
- S(i);XR(J)::S(B)
- Tries
- Try
- B(K);XQ(h)
- Threat
- DUALS(2)
- Vars
- R(f);XR(J)::S(B)
- S(i);XR(J)::S(B)
- Refutation
- R(f);
- Try
- R(L);XS(i)
- Threat
- DUALS(2)
- Vars
- Q(h);XB(K)::QAB1(E),XP(d)
- Q(h);XR(L)::S(B)
- R(f);XR(J)::S(B)
- Q(h);OGATE::B(K)
- Q(h);::S(B)
- Refutation
- R(f);
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- K(b);P_SPINQ(h),P_SPINS(i),S_FLIGHT::QAB(E)
- Refutation
- Q(h);CHECK
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- K(b);P_SPINQ(h),P_SPINS(i),S_FLIGHT::QAB(E)
- Refutation
- P(a);XQ(E)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- S(i);XP(I)::QAB1(E),XP(d)
- Q(h);::QAB(E)
- Refutation
- Q(h);P_PINQ(E)
- Try
- Actual
- P(F);
- Threat
- DUALS(2)
- Vars
- S(i);XP(I)::S(B)
- Q(h);::QAB(E)
- Q(h);P_PINQ(E)::S(B)
Developed and maintained by Brian Stephenson.
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