MESON Chess Problem Database
Problem Display
PID: 147320 (5R1K/7P/3p4/2p1kP2/5n2/2P1Nr2/3qQN1B/2bRr1nB w - - 0 1)
Prins, Hendrik
Canadian Chess Chat, 1984
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxc3
- 2.Sc4#
- 2.Seg4#
- 2.Rd5#
- 1...Qa2
- 2.Sc4#
- 2.Seg4#
- 1...Qb2
- 2.Sc4#
- 2.Seg4#
- 2.Rd5#
- 1...Qc2
- 2.Sc4#
- 2.Seg4#
- 2.Rd5#
- 1...Qxe2
- 2.Seg4#
- 2.Rd5#
- 1...Qd5
- 2.Sc4#
- 2.Seg4#
- 2.Rxd5#
- 1...Rxf2
- 2.Sc4#
- 2.Sg4#
- 1...Rxe3
- 2.Sg4#
- 1...Rg3
- 2.Sc4#
- 2.Seg4#
- 1...Rh3
- 2.Sfg4#
- 2.Sc4#
- 2.Seg4#
- 1...d5
- 2.Sc4#
- 1...Qxc3
- Tries
- 1.Kg7?
- threat
- 2.Re8#
- 1...Rg3+
- 2.Seg4#
- 1...Rxe3
- 2.Sg4#
- 1...d5
- 2.Sc4#
- 1...Qa2
- 2.Sc4#
- 2.Seg4#
- 1...Qd5
- 2.Sc4#
- 2.Seg4#
- 2.Rxd5#
- 1...Qxe3!
- threat
- 1.Bxf3?
- threat
- 2.Sfg4#
- 2.Sc4#
- 2.Seg4#
- 1...Qxe3
- 2.Sd3#
- 2.Sg4#
- 2.Rd5#
- 1...Qxe2
- 2.Sfg4#
- 2.Seg4#
- 2.Rd5#
- 1...d5
- 2.Sc4#
- 1...c4
- 2.Sfg4#
- 2.Sxc4#
- 2.Seg4#
- 1...Sxf3!
- threat
- 1.Bxf4+?
- 1...Rxf4
- 2.Sc4#
- 2.Seg4#
- 1...Kxf4!
- 1...Rxf4
- 1.Rxd2?
- threat
- 2.Sc4#
- 2.Seg4#
- 2.Rd5#
- 1...Rxe3
- 2.Sd3#
- 2.Sg4#
- 2.Rd5#
- 1...d5
- 2.Sc4#
- 2.Rxd5#
- 1...Rd1
- 2.Sc4#
- 2.Seg4#
- 1...Rg3
- 2.Sc4#
- 2.Seg4#
- 1...c4
- 2.Sxc4#
- 2.Seg4#
- 2.Rd5#
- 1...Bxd2!
- threat
- 1.Qxf3?
- threat
- 2.Sfg4#
- 2.Sc4#
- 2.Seg4#
- 2.Bxf4#
- 2.Qe4#
- 2.Qxf4#
- 1...Qxc3
- 2.Sfg4#
- 2.Seg4#
- 2.Bxf4#
- 2.Rd5#
- 2.Qe4#
- 2.Qd5#
- 2.Qxf4#
- 1...Qxe3
- 2.Sg4#
- 2.Rd5#
- 2.Qd5#
- 1...Qxf2
- 2.Sc4#
- 2.Sg4#
- 2.Bxf4#
- 2.Rd5#
- 2.Qe4#
- 2.Qd5#
- 1...Rxe3
- 2.Sg4#
- 2.Bxf4#
- 2.Qxf4#
- 1...d5
- 2.Bxf4#
- 2.Qxf4#
- 1...Qa2
- 2.Sd3#
- 2.Sfg4#
- 2.Seg4#
- 2.Bxf4#
- 2.Qe4#
- 2.Qxf4#
- 1...Qc2
- 2.Sfg4#
- 2.Sc4#
- 2.Seg4#
- 2.Bxf4#
- 2.Rd5#
- 2.Qd5#
- 2.Qxf4#
- 1...Qe2
- 2.Sfg4#
- 2.Seg4#
- 2.Bxf4#
- 2.Rd5#
- 2.Qe4#
- 2.Qd5#
- 2.Qxf4#
- 1...Qd3
- 2.Sxd3#
- 2.Sfg4#
- 2.Seg4#
- 2.Bxf4#
- 2.Qxf4#
- 1...Qd4
- 2.Sfg4#
- 2.Seg4#
- 1...Qd5
- 2.Sfg4#
- 2.Seg4#
- 2.Bxf4#
- 2.Rxd5#
- 2.Qxd5#
- 2.Qxf4#
- 1...Se2
- 2.Sfg4#
- 2.Sc4#
- 2.Seg4#
- 2.Qe4#
- 1...Sh3
- 2.Sfg4#
- 2.Sc4#
- 2.Seg4#
- 2.Qe4#
- 1...c4
- 2.Sfg4#
- 2.Sxc4#
- 2.Seg4#
- 2.Bxf4#
- 2.Qe4#
- 2.Qxf4#
- 1...Sxf3!
- threat
- 1.Qc4?
- threat
- 2.Sfg4#
- 2.Seg4#
- 2.Qe6#
- 2.Qe4#
- 1...Qxe3
- 2.Sg4#
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 1...Qxf2
- 2.Sg4#
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 1...Rexe3
- 2.Sg4#
- 2.Qe6#
- 1...Rxf2
- 2.Sg4#
- 2.Qe6#
- 2.Qe4#
- 1...Rfxe3
- 2.Sg4#
- 2.Bxf4#
- 2.Qe6#
- 2.Qxf4#
- 1...Qa2
- 2.Sd3#
- 2.Sfg4#
- 2.Seg4#
- 2.Rd5#
- 2.Qe4#
- 1...Qc2
- 2.Sfg4#
- 2.Seg4#
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 1...Qd3
- 2.Sxd3#
- 2.Sfg4#
- 2.Seg4#
- 2.Qe6#
- 1...Qd4
- 2.Seg4#
- 2.Qe6#
- 1...Qd5
- 2.Sfg4#
- 2.Seg4#
- 2.Rxd5#
- 2.Qxd5#
- 1...Rg3
- 2.Qe4#
- 1...d5!
- threat
- 1.Qb5?
- threat
- 2.Qe8#
- 1...d5
- 2.Qb8#
- 1...Qa2
- 2.Seg4#
- 1...Qd5
- 2.Seg4#
- 2.Rxd5#
- 1...Rg3
- 2.Sc4#
- 1...Rexe3!
- threat
- 1.Qxd2?
- threat
- 2.Sc4#
- 2.Seg4#
- 2.Qd5#
- 2.Qxd6#
- 1...Rxd1
- 2.Sc4#
- 2.Seg4#
- 1...Rexe3
- 2.Qd5#
- 2.Qxd6#
- 1...Rfxe3
- 2.Sg4#
- 2.Qd5#
- 2.Qxd6#
- 1...d5
- 2.Qxd5#
- 1...Rg3
- 2.Sc4#
- 2.Qxd6#
- 1...c4
- 2.Sxc4#
- 2.Seg4#
- 2.Qd4#
- 2.Qd5#
- 2.Qxd6#
- 1...Bxd2!
- threat
- 1.Kg7?
- Keys
- 1.Kg8!
- threat
- 2.h8Q#
- 2.h8B#
- 1...Qa2+
- 2.Sc4#
- 1...Qd5+
- 2.Rxd5#
- 1...Rg3+
- 2.Seg4#
- 1...Qxc3
- 2.Sc4#
- 2.Seg4#
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Qxe3
- 2.h8Q#
- 2.h8B#
- 1...Qxd1
- 2.h8Q#
- 2.h8B#
- 1...Qxe2
- 2.Seg4#
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Rxd1
- 2.h8Q#
- 2.h8B#
- 1...Rxe2
- 2.h8Q#
- 2.h8B#
- 1...Rxf2
- 2.Sc4#
- 2.Sg4#
- 2.h8Q#
- 2.h8B#
- 1...Rxe3
- 2.Sg4#
- 2.h8Q#
- 2.h8B#
- 1...Sxe2
- 2.h8Q#
- 2.h8B#
- 1...d5
- 2.Sc4#
- 1...Qb2
- 2.Sc4#
- 2.Seg4#
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Qc2
- 2.Sc4#
- 2.Seg4#
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Qd3
- 2.h8Q#
- 2.h8B#
- 1...Qd4
- 2.h8Q#
- 2.h8B#
- 1...Rf1
- 2.h8Q#
- 2.h8B#
- 1...Rh3
- 2.Sfg4#
- 2.Sc4#
- 2.Seg4#
- 1...Bb2
- 2.h8Q#
- 2.h8B#
- 1...Ba3
- 2.h8Q#
- 2.h8B#
- 1...Sh3
- 2.h8Q#
- 2.h8B#
- 1...c4
- 2.h8Q#
- 2.h8B#
- threat
- 1.Kg8!
There are these versions: 47525
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(e);P_SPINR(e),XS(G)::S(D)
- P(i);SBLOCK::QAR(C)+S(G),DCHECK
- Tries
- Try
- K(K);S_FLIGHT
- Threat
- R(J)
- Vars
- R(e);CHECK,N_SPINS(f)::QAR(C)+S(G),DCHECK
- R(e);P_SPINR(e),XS(G)::S(D)
- P(i);SBLOCK::QAR(C)+S(G),DCHECK
- Refutation
- Q(d);P_SPINQ(d),XS(G)
- Try
- B(B);XR(e)
- Threat
- DUALS(3)
- Vars
- P(i);::QAR(C)+S(G),DCHECK
- Refutation
- S(c);XB(B)
- Try
- B(E);CHECK,XS(f)
- Refutation
- K(h);S_FLIGHT,XB(E)
- Try
- R(A);XQ(d)
- Threat
- DUALS(3)
- Refutation
- B(a);XR(A)
- Try
- Q(C);XR(e)
- Threat
- DUALS(6)
- Refutation
- S(c);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- R(e);N_SPINS(f)::QAR1(C)
- Refutation
- P(i);
- Try
- Q(C);P_PINP(g)
- Threat
- QAR(C)
- Vars
- P(i);N_SPINP(g),OGATEB::QAB(C)
- Q(d);::S(G)
- R(e);N_SPINS(f)::S(G)
- Refutation
- R(b);XS(G)
- Try
- Q(C);XQ(d)
- Threat
- DUALS(4)
- Vars
- P(i);::QAR1(C),XP(i)
- Refutation
- B(a);XQ(C)
- Try
- Actual
- K(K);P-FLIGHT
- Threat
- P=Q
- Vars
- Q(d);CHECK::QAR(C)+S(G),DCHECK
- Q(d);CHECK,OGATE::R1(A),XQ(d)
- R(e);CHECK,N_SPINS(f)::QAR(C)+S(G),DCHECK
- Q(d);P_SPINQ(d),XS(G)::P=Q
- Q(d);XR(A)::P=Q
- R(b);XR(A)::P=Q
- R(b);XQ(C)::P=Q
- S(c);XQ(C)::P=Q
- P(i);SBLOCK::QAR(C)+S(G),DCHECK
- Q(d);::P=Q
- R(b);::P=Q
- B(a);::P=Q
- S(c);::P=Q
- P(g);::P=Q
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