MESON Chess Problem Database
Problem Display
PID: 186013 (Q3n3/1B2pR2/3p2p1/2N1kp2/n1P4R/4B3/4b3/b5NK w - - 0 1)
Groeneveld, Cornelis
Freie Presse, 2000
(First published on Fri Apr 14 2000)
#2
9 + 9
| 15391 | Problemschach-Jahrbuch (2000) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Bd4
- 2.Bxd4#
- 2.Bf4#
- 1...Bf1
- 2.Sf3#
- 1...Bd3
- 2.Sf3#
- 1...Bf3+
- 2.Sxf3#
- 1...Bxc4
- 2.Sf3#
- 1...Sb2
- 2.Bd4#
- 1...Sc3
- 2.Bd4#
- 1...Sb6
- 2.Qxa1#
- 1...Sf6
- 2.Rxe7#
- 1...Sc7
- 2.Qh8#
- 1...e6
- 2.Sd7#
- 1...Bd4
- Tries
- 1.Bf3?
- threat
- 2.Qd5#
- 1...Bxf3+
- 2.Sxf3#
- 1...d5
- 2.Qxd5#
- 1...Sc3
- 2.Bd4#
- 1...Sb6
- 2.Qxa1#
- 1...Sf6
- 2.Rxe7#
- 1...Sc7
- 2.Qh8#
- 1...e6
- 2.Sd7#
- 1...Bxc4!
- threat
- 1.Be4?
- threat
- 2.Qd5#
- 1...Bf3+
- 2.Sxf3#
- 1...Bxc4
- 2.Sf3#
- 1...d5
- 2.Qxd5#
- 1...Sb6
- 2.Qxa1#
- 1...Sf6
- 2.Rxe7#
- 1...Sc7
- 2.Qh8#
- 1...e6
- 2.Sd7#
- 1...Sc3!
- threat
- 1.Bd5?
- threat
- 2.Sd7#
- 1...Bf3+
- 2.Sxf3#
- 1...Sxc5
- 2.Qxa1#
- 1...Sb6
- 2.Qxa1#
- 1...Sf6
- 2.Rxe7#
- 1...dxc5!
- threat
- 1.Ba6?
- threat
- 2.Qd5#
- 1...Bf3+
- 2.Sxf3#
- 1...Bxc4
- 2.Sf3#
- 1...d5
- 2.Qxd5#
- 1...Sc3
- 2.Bd4#
- 1...Sf6
- 2.Rxe7#
- 1...Sc7
- 2.Qh8#
- 1...e6
- 2.Sd7#
- 1...Sb6!
- threat
- 1.Bc8?
- threat
- 2.Qd5#
- 1...Bf3+
- 2.Sxf3#
- 1...Bxc4
- 2.Sf3#
- 1...d5
- 2.Qxd5#
- 1...Sc3
- 2.Bd4#
- 1...Sb6
- 2.Qxa1#
- 1...Sf6
- 2.Rxe7#
- 1...e6
- 2.Sd7#
- 1...Sc7!
- threat
- 1.Qxe8?
- threat
- 2.Qxe7#
- 2.Qh8#
- 1...Bf3+
- 2.Sxf3#
- 1...Bxc4
- 2.Sf3#
- 2.Qh8#
- 1...dxc5
- 2.Qxe7#
- 1...d5
- 2.Qxe7#
- 2.Qb8#
- 1...e6
- 2.Sd7#
- 2.Qxe6#
- 2.Qh8#
- 1...Sxc5!
- threat
- 1.Bf3?
- Keys
- 1.Bg2!
- threat
- 2.Qd5#
- 1...Bxc4
- 2.Sf3#
- 1...d5
- 2.Qxd5#
- 1...Bf3
- 2.Sxf3#
- 1...Sc3
- 2.Bd4#
- 1...Sb6
- 2.Qxa1#
- 1...Sf6
- 2.Rxe7#
- 1...Sc7
- 2.Qh8#
- 1...e6
- 2.Sd7#
- threat
- 1.Bg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(b);N_GUARD::S(A)
- B(b);CHECK,N_GUARD::S(A),XB(b)
- B(b);N_GUARD,XP(D)::S(A)
- S(c);S_CUTB(a)::B(C)
- S(c);OGATE::QAB(I),XB(a)
- S(i);SBLOCK::R(H),XP(h)
- S(i);OGATE::QAB(I)
- P(h);SBLOCK::S(F)
- Tries
- Try
- B(G);
- Threat
- QAR1(I)
- Vars
- B(b);CHECK,XB(G)::S(A),XB(b)
- P(f);::QAR1(I),XP(f)
- S(c);S_CUTB(a)::B(C)
- S(c);OGATE::QAB(I),XB(a)
- S(i);SBLOCK::R(H),XP(h)
- S(i);OGATE::QAB(I)
- P(h);SBLOCK::S(F)
- Refutation
- B(b);XP(D)
- Try
- B(G);
- Threat
- QAR1(I)
- Vars
- B(b);CHECK,N_GUARD::S(A),XB(b)
- B(b);N_GUARD,XP(D)::S(A)
- P(f);::QAR1(I),XP(f)
- S(c);OGATE::QAB(I),XB(a)
- S(i);SBLOCK::R(H),XP(h)
- S(i);OGATE::QAB(I)
- P(h);SBLOCK::S(F)
- Refutation
- S(c);
- Try
- B(G);
- Threat
- S(F)
- Vars
- B(b);CHECK,N_GUARD::S(A),XB(b)
- S(c);OGATE,XS(F)::QAB(I),XB(a)
- S(c);OGATE::QAB(I),XB(a)
- S(i);SBLOCK::R(H),XP(h)
- Refutation
- P(f);XS(F)
- Try
- B(G);
- Threat
- QAR1(I)
- Vars
- B(b);CHECK,N_GUARD::S(A),XB(b)
- B(b);N_GUARD,XP(D)::S(A)
- P(f);::QAR1(I),XP(f)
- S(c);S_CUTB(a)::B(C)
- S(i);SBLOCK::R(H),XP(h)
- S(i);OGATE::QAB(I)
- P(h);SBLOCK::S(F)
- Refutation
- S(c);
- Try
- B(G);
- Threat
- QAR1(I)
- Vars
- B(b);CHECK,N_GUARD::S(A),XB(b)
- B(b);N_GUARD,XP(D)::S(A)
- P(f);::QAR1(I),XP(f)
- S(c);S_CUTB(a)::B(C)
- S(c);OGATE::QAB(I),XB(a)
- S(i);SBLOCK::R(H),XP(h)
- P(h);SBLOCK::S(F)
- Refutation
- S(i);
- Try
- Q(I);P_PINP(h),XS(i)
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::S(A),XB(b)
- P(f);XS(F)::QAR2(I),XP(h)
- Refutation
- S(c);XS(F)
- Try
- Actual
- B(G);
- Threat
- QAR1(I)
- Vars
- B(b);N_GUARD,XP(D)::S(A)
- P(f);::QAR1(I),XP(f)
- B(b);N_GUARD,P_PINB(G)::S(A),XB(b)
- S(c);S_CUTB(a)::B(C)
- S(c);OGATE::QAB(I),XB(a)
- S(i);SBLOCK::R(H),XP(h)
- S(i);OGATE::QAB(I)
- P(h);SBLOCK::S(F)
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