MESON Chess Problem Database
Problem Display
PID: 78695 (8/5p2/5Q2/1N2pp2/1PnNkPbR/3p2p1/3P2P1/2K5 w - - 0 1)
Gevers, Raymond
L'Echiquier de Paris, 1948
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Kxf4
- 2.Qxf5#
- 1...Kd5
- 2.Qc6#
- 1...Bd1
- 2.Qc6#
- 1...Be2
- 2.Qc6#
- 1...Bf3
- 2.Qc6#
- 1...Bh3
- 2.Qc6#
- 1...Bh5
- 2.Qc6#
- 1...Sb2
- 2.Qxe5#
- 1...Sxd2
- 2.Qxe5#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sb6
- 2.Qxe5#
- 1...Sd6
- 2.Qxe5#
- 1...exd4
- 2.Qxd4#
- 1...exf4
- 2.Sc3#
- 1...Kxf4
- Tries
- 1.Se2?
- threat
- 2.Sbc3#
- 2.Qc6#
- 1...Kd5
- 2.Sec3#
- 2.Sbc3#
- 1...Bxe2
- 2.Qc6#
- 1...Sxd2
- 2.Qxe5#
- 1...exf4
- 2.Sec3#
- 2.Sbc3#
- 2.Qd4#
- 1...Se3
- 2.Sbc3#
- 2.Qxe5#
- 1...Sa5
- 2.Sbc3#
- 2.Qxe5#
- 1...Sb6
- 2.Sbc3#
- 2.Qxe5#
- 1...Sd6
- 2.Sbc3#
- 2.Qxe5#
- 1...dxe2!
- threat
- 1.Sb3?
- 1...Kd5
- 2.Sc3#
- 1...Sxd2
- 2.Qxe5#
- 1...exf4
- 2.Sc3#
- 2.Qd4#
- 1...Bd1
- 2.Sc3#
- 2.Qc6#
- 1...Be2
- 2.Sc3#
- 2.Qc6#
- 1...Bf3
- 2.Sc3#
- 2.Qc6#
- 1...Bh3
- 2.Sc3#
- 2.Qc6#
- 1...Bh5
- 2.Sc3#
- 2.Qc6#
- 1...Sb2
- 2.Qxe5#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sb6
- 2.Qxe5#
- 1...Sd6
- 2.Qxe5#
- 1...Kxf4!
- 1...Kd5
- 1.Sf3?
- 1...Kd5
- 2.Sc3#
- 1...Bxf3
- 2.Qc6#
- 1...Sxd2
- 2.Qxe5#
- 1...exf4
- 2.Sc3#
- 2.Qd4#
- 2.Qc6#
- 1...Bh3
- 2.Sc3#
- 2.Qc6#
- 1...Bh5
- 2.Sc3#
- 2.Qc6#
- 1...Sb2
- 2.Qxe5#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sb6
- 2.Qxe5#
- 1...Sd6
- 2.Qxe5#
- 1...Kxf4!
- 1...Kd5
- 1.Sc6?
- 1...Kd5
- 2.Sc3#
- 1...Sxd2
- 2.Qxe5#
- 1...exf4
- 2.Sc3#
- 2.Qd4#
- 1...Bd1
- 2.Sc3#
- 1...Be2
- 2.Sc3#
- 1...Bf3
- 2.Sc3#
- 1...Bh3
- 2.Sc3#
- 1...Bh5
- 2.Sc3#
- 1...Sb2
- 2.Qxe5#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sb6
- 2.Qxe5#
- 1...Sd6
- 2.Qxe5#
- 1...Kxf4!
- 1...Kd5
- 1.Sc3+?
- 1...Kxf4
- 2.Qxf5#
- 2.Qh6#
- 1...Kxd4!
- 1...Kxf4
- 1.Rxg4?
- threat
- 2.Qc6#
- 1...Kd5
- 2.Qc6#
- 1...Sxd2
- 2.Qxe5#
- 1...exf4
- 2.Sc3#
- 2.Qxf5#
- 1...Se3
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sb6
- 2.Qxe5#
- 1...Sd6
- 2.Qxe5#
- 1...fxg4!
- threat
- 1.Se2?
- Keys
- 1.Sxf5!
- 1...Kxf4
- 2.Sfd6#
- 1...Kd5
- 2.Sc3#
- 1...Bxf5
- 2.Qc6#
- 1...Sxd2
- 2.Qxe5#
- 1...exf4
- 2.Sc3#
- 1...Bd1
- 2.Sc3#
- 1...Be2
- 2.Sc3#
- 1...Bf3
- 2.Sc3#
- 1...Bh3
- 2.Sc3#
- 1...Bh5
- 2.Sc3#
- 1...Sb2
- 2.Qxe5#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sb6
- 2.Qxe5#
- 1...Sd6
- 2.Qxe5#
- 1...Kxf4
- 1.Sxf5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(d);P-FLIGHT,P_SPINB(e),P_SPINP(g),XP(F)::QAR1(I),XP(g)
- K(d);S_FLIGHT::QAB1(I)
- B(e);::QAB(I)
- S(c);N_GUARD::QAR1(I),XP(f)
- S(c);N_GUARD,XP(B)::QAR1(I),XP(f)
- P(f);OGATE,XS(E)::QAR1(I),XP(f)
- P(f);SBLOCK,XP(F)::S(H)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- B(e);XS(E)::QAB(I)
- S(c);N_GUARD,XP(B)::QAR1(I),XP(f)
- Refutation
- P(a);XS(E)
- Try
- S(E);
- Vars
- K(d);S_FLIGHT::S(H)
- S(c);N_GUARD,XP(B)::QAR1(I),XP(f)
- S(c);N_GUARD::QAR1(I),XP(f)
- Refutation
- K(d);P-FLIGHT,P_SPINB(e),P_SPINP(g),XP(F)
- Try
- S(E);
- Vars
- K(d);S_FLIGHT::S(H)
- B(e);XS(E)::QAB(I)
- S(c);N_GUARD,XP(B)::QAR1(I),XP(f)
- S(c);N_GUARD::QAR1(I),XP(f)
- Refutation
- K(d);P-FLIGHT,P_SPINB(e),P_SPINP(g),XP(F)
- Try
- S(E);
- Vars
- K(d);S_FLIGHT::S(H)
- S(c);N_GUARD,XP(B)::QAR1(I),XP(f)
- B(e);::S(H)
- S(c);N_GUARD::QAR1(I),XP(f)
- Refutation
- K(d);P-FLIGHT,P_SPINB(e),P_SPINP(g),XP(F)
- Try
- S(H);CHECK
- Refutation
- K(d);P-FLIGHT,P_SPINP(f),XS(E)
- Try
- R(G);XB(e)
- Threat
- QAB(I)
- Vars
- K(d);S_FLIGHT::QAB1(I)
- S(c);N_GUARD,XP(B)::QAR1(I),XP(f)
- S(c);N_GUARD::QAR1(I),XP(f)
- Refutation
- P(g);XR(G)
- Try
- Actual
- S(E);XP(g)
- Vars
- K(d);P-FLIGHT,P_SPINB(e),XP(F)::QAR(I)+S(E)
- K(d);S_FLIGHT::S(H)
- B(e);SBLOCK,XS(E)::QAB(I)
- S(c);N_GUARD,XP(B)::QAR1(I),XP(f)
- P(f);SBLOCK,XP(F)::S(H)
- B(e);::S(H)
- S(c);N_GUARD::QAR1(I),XP(f)
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