MESON Chess Problem Database
Problem Display
PID: 158727 (2Rb4/2qB4/5pp1/2Nk1N2/2p2B2/2Q2n2/pP6/K7 w - - 0 1)
Innocenti, Didier
Phenix, 1988
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Kxc5
- 2.Qa5#
- 1...Qxf4
- 2.Be6#
- 1...Qa5
- 2.Se3#
- 2.Be6#
- 2.Qxf3#
- 1...Qb6
- 2.Se3#
- 2.Qxf3#
- 1...Qd6
- 2.Se3#
- 2.Qxf3#
- 1...Qb8
- 2.Se3#
- 2.Be6#
- 2.Qxf3#
- 1...Qxc5
- 2.Qxf3#
- 1...Qa7
- 2.Se3#
- 2.Be6#
- 2.Qxf3#
- 1...Qb7
- 2.Se3#
- 2.Be6#
- 2.Qxf3#
- 1...Qxd7
- 2.Se3#
- 2.Qxf3#
- 1...Se1
- 2.Qd4#
- 1...Sg1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sh2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Kxc5
- Tries
- 1.Bd6?
- threat
- 2.Qxf3#
- 1...Qxd6
- 2.Se3#
- 1...Se1
- 2.Qd4#
- 1...Sg1
- 2.Qd2#
- 2.Qd4#
- 1...Sd2
- 2.Qxd2#
- 2.Qd4#
- 1...Sh2
- 2.Qd2#
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd2#
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Sg5
- 2.Qd2#
- 2.Qd4#
- 1...gxf5!
- threat
- 1.Rxc7?
- threat
- 2.Se3#
- 2.Be6#
- 2.Qxf3#
- 1...gxf5
- 2.Be6#
- 1...Se1
- 2.Se3#
- 2.Be6#
- 2.Qd4#
- 1...Sg1
- 2.Se3#
- 2.Be6#
- 2.Qd2#
- 2.Qd4#
- 1...Sd2
- 2.Se3#
- 2.Be6#
- 2.Qxd2#
- 2.Qd4#
- 1...Sh2
- 2.Se3#
- 2.Be6#
- 2.Qd2#
- 2.Qd4#
- 1...Sd4
- 2.Se3#
- 2.Qxd4#
- 1...Sh4
- 2.Se3#
- 2.Be6#
- 2.Qd2#
- 2.Qd4#
- 1...Se5
- 2.Be6#
- 2.Qd4#
- 1...Sg5
- 2.Se3#
- 2.Qd2#
- 2.Qd4#
- 1...Bxc7!
- threat
- 1.Qd2+?
- 1...Kxc5
- 2.Qa5#
- 2.Qd6#
- 1...Sd4
- 2.Qxd4#
- 1...Sxd2!
- 1...Kxc5
- 1.Qd3+?
- 1...Kxc5
- 2.Qd6#
- 1...Sd4
- 2.Qxd4#
- 1...cxd3!
- 1...Kxc5
- 1.b4?
- threat
- 2.Se3#
- 2.Qxf3#
- 1...Qxf4
- 2.Bc6#
- 2.Be6#
- 1...Qxc5
- 2.Qxf3#
- 1...cxb4 ep
- 2.Se3#
- 1...Qe5
- 2.Bc6#
- 1...Se1
- 2.Se3#
- 2.Qd4#
- 1...Sg1
- 2.Se3#
- 2.Qd2#
- 2.Qd4#
- 1...Sd2
- 2.Se3#
- 2.Qxd2#
- 2.Qd4#
- 1...Sh2
- 2.Se3#
- 2.Qd2#
- 2.Qd4#
- 1...Sd4
- 2.Se3#
- 2.Qxd4#
- 1...Sh4
- 2.Se3#
- 2.Qd2#
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Sg5
- 2.Se3#
- 2.Qd2#
- 2.Qd4#
- 1...gxf5!
- threat
- 1.Bd6?
- Keys
- 1.b3!
- threat
- 2.Qxc4#
- 1...Kxc5
- 2.Qa5#
- 1...Qxf4
- 2.Be6#
- 1...Qxc5
- 2.Qxf3#
- 1...cxb3
- 2.Se3#
- 1...Qe5
- 2.bxc4#
- 1...Sd2
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- threat
- 1.b3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- K(d);OGATEB,P-FLIGHT,P_SPINP(c),P_SPINQ(g),XS(E)::QAR2(C)
- Q(g);XB(D)::B(G)
- Q(g);XS(E)::QAB(C),XS(b)
- S(b);N_GUARD::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- Tries
- Try
- B(D);
- Threat
- QAB(C),XS(b)
- Vars
- Q(g);SBLOCK,XB(D)::S(F)
- S(b);N_GUARD::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- Refutation
- P(f);XS(F)
- Try
- R(H);XQ(g)
- Threat
- DUALS(3)
- Vars
- P(f);XS(F)::B(G)
- Refutation
- B(h);XR(H)
- Try
- Q(C);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAR1(C),XS(b)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(d);OGATE,P-FLIGHT,P_SPINQ(g),XS(E)::QAB1(C)
- S(b);N_GUARD,P_SPINS(b)::QAR1(C),XS(b)
- Refutation
- P(c);XQ(C)
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- Q(g);XS(E)::QAB(C),XS(b)
- P(c);EP,XP(B)::S(F)
- Q(g);N_GUARD,P_PINQ(C)::B(G)
- S(b);N_GUARD::QAR1(C)
- Refutation
- P(f);XS(F)
- Try
- Actual
- P(B);
- Threat
- QAB1(C),XP(c)
- Vars
- K(d);OGATEB,P-FLIGHT,P_SPINP(c),P_SPINQ(g),XS(E)::QAR2(C)
- Q(g);XB(D)::B(G)
- Q(g);XS(E)::QAB(C),XS(b)
- P(c);XP(B)::S(F)
- Q(g);P_PINQ(C)::P(B),XP(c)
- S(b);N_GUARD::QAR1(C)
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