MESON Chess Problem Database
Problem Display
PID: 56148 (1r1R2b1/3B4/3p4/N1pkB3/3b3K/p1P5/qP3N2/3QR1n1 w - - 0 1)
Mansfield, Comins
Complete Mansfield/III, 1999
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.c4#
- 1...Qa1
- 2.c4#
- 1...Qxb2
- 2.c4#
- 1...Rb3
- 2.c4#
- 1...Be6
- 2.Bc6#
- 1...Sf3+
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...c4
- 2.Qxd4#
- 1...dxe5
- 2.Bc8#
- 1...Qb1
- Tries
- 1.Sh3?
- threat
- 2.Sf4#
- 1...Sf3+
- 2.Qxf3#
- 1...Sxh3
- 2.Qf3#
- 1...dxe5
- 2.Bc8#
- 1...c4
- 2.Qxd4#
- 1...Se2!
- threat
- 1.Sg4?
- threat
- 2.Sf6#
- 1...Sf3+
- 2.Qxf3#
- 1...dxe5
- 2.Bc8#
- 1...c4
- 2.Qxd4#
- 1...Se2!
- threat
- 1.Bxd4?
- threat
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 2.Bc6#
- 2.Qh5#
- 1...Sf3+
- 2.Qxf3#
- 1...Qxb2
- 2.Bc6#
- 2.Qh5#
- 2.c4#
- 1...Rxb2
- 2.Bc6#
- 2.Qh5#
- 1...cxd4
- 2.Qh5#
- 2.Qxd4#
- 1...Rb6
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 2.Qh5#
- 1...Qb1
- 2.Bc6#
- 2.c4#
- 1...Qb3
- 2.Bc6#
- 2.Qh5#
- 1...Qc4
- 2.Bc6#
- 2.Qh5#
- 1...Qa1
- 2.Bc6#
- 2.Qh5#
- 2.c4#
- 1...Rb4
- 2.Bc6#
- 2.Qh5#
- 1...Rc8
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 2.Qh5#
- 1...Be6
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 2.Bc6#
- 2.Bxe6#
- 1...Bf7
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 2.Bc6#
- 1...Bh7
- 2.Bc6#
- 2.Be6#
- 1...Sh3
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 2.Bc6#
- 2.Qf3#
- 1...c4
- 2.Bb6#
- 2.Ba7#
- 2.Bc6#
- 2.Qh5#
- 1...Se2!
- threat
- 1.Be6+?
- 1...Bxe6
- 2.Rxd6#
- 1...Kxe6!
- 1...Bxe6
- 1.Qg4?
- threat
- 2.Bc6#
- 2.Qe4#
- 2.Qxg8#
- 1...Sf3+
- 2.Qxf3#
- 1...Rxd8
- 2.Bc6#
- 2.Qe4#
- 1...dxe5
- 2.Bc6#
- 2.Be6#
- 2.Bc8#
- 1...Be3
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...c4
- 2.Qxd4#
- 1...Rb6
- 2.Qe4#
- 2.Qxg8#
- 1...Qb1
- 2.Bc6#
- 2.Qxg8#
- 2.c4#
- 1...Rc8
- 2.Qe4#
- 2.Qxg8#
- 1...Be6
- 2.Bc6#
- 2.Bxe6#
- 2.Qxe6#
- 2.Qe4#
- 1...Bf7
- 2.Bc6#
- 2.Qe4#
- 1...Bh7
- 2.Bc6#
- 2.Be6#
- 2.Qe6#
- 1...Bxf2+!
- threat
- 1.Qd3?
- threat
- 2.Qe4#
- 1...Sf3+
- 2.Qxf3#
- 1...dxe5
- 2.Bc8#
- 1...c4
- 2.Qxd4#
- 1...Qb1
- 2.Qc4#
- 2.c4#
- 1...Bh7!
- threat
- 1.Sh3?
- Keys
- 1.Qh5!
- threat
- 2.Bxd4#
- 1...Bxf2+
- 2.Bg3#
- 1...Sf3+
- 2.Qxf3#
- 1...Bxc3
- 2.Bxc3#
- 1...Bxe5
- 2.Rd1#
- 1...dxe5
- 2.Bc8#
- 1...Qb1
- 2.c4#
- 1...Be3
- 2.Bf4#
- 1...Be6
- 2.Bc6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 1...Sh3
- 2.Qf3#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- Q(b);N_GUARD::P(E)
- Q(b);N_GUARD,XP(C)::P(E)
- R(h);S_CUTQ(b)::P(E)
- B(i);SBLOCK::B(I)
- S(a);CHECK,N_GUARD::QAB(A),XS(a)
- S(a);N_GUARD::QAB(A)
- P(e);N_GUARD::QAR1(A),XB(d)
- P(g);OGATEB,XB(H)::R(J)+B(I)
- Tries
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(a);CHECK,N_GUARD::QAB(A),XS(a)
- S(a);N_GUARD,XS(D)::QAB(A)
- P(g);OGATEB,XB(H)::R(J)+B(I)
- P(e);N_GUARD::QAR1(A),XB(d)
- Refutation
- S(a);
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(a);CHECK,N_GUARD::QAB(A),XS(a)
- P(g);OGATEB,XB(H)::R(J)+B(I)
- P(e);N_GUARD::QAR1(A),XB(d)
- Refutation
- S(a);
- Try
- B(H);XB(d)
- Threat
- DUALS(6)
- Vars
- S(a);CHECK,N_GUARD::QAB(A),XS(a)
- Refutation
- S(a);
- Try
- B(I);CHECK,P_PINP(g)
- Vars
- B(i);XB(I)::R1(J),XP(g)
- Refutation
- K(f);N_SPINB(d),N_SPINP(g),S_FLIGHT,XB(I)
- Try
- Q(A);N_PINB(d)
- Threat
- DUALS(3)
- Vars
- S(a);CHECK,N_GUARD::QAB(A),XS(a)
- B(d);::QAB1(A)
- S(a);::QAB1(A)
- P(e);N_GUARD::QAR1(A),XB(d)
- Refutation
- B(d);CHECK,XS(D)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(a);CHECK,N_GUARD::QAB(A),XS(a)
- P(g);OGATEB,XB(H)::R(J)+B(I)
- P(e);N_GUARD::QAR1(A),XB(d)
- Refutation
- B(i);
- Try
- Actual
- Q(A);N_PINB(d)
- Threat
- QAR(A)+B(H),XB(d)
- Vars
- B(d);CHECK,N_GUARD,XS(D)::QAR(A)+B(H)
- S(a);CHECK,N_GUARD::QAB(A),XS(a)
- B(d);OGATE,XP(E)::QAR(A)+B(H),XB(d)
- B(d);OGATEB,P_SPINB(d),XB(H)::R(B)
- P(g);OGATEB,P_SPINP(g),XB(H)::R(J)+B(I)
- Q(b);N_GUARD::P(E)
- B(d);N_GUARD::QAR(A)+B(H)
- B(i);SBLOCK::B(I)
- B(i);N_GUARD::QAB(A),XB(i)
- B(i);N_GUARD::QAB(A)
- S(a);N_GUARD::QAB(A)
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