MESON Chess Problem Database

Problem Display
PID: 15808 (2BBbr2/pN1p1P2/3Nk1P1/1R1pr1pP/8/2Q2pK1/8/8 w - - 0 1)

Caillaud, Michel

Comm., Boyer MT, 1988

2BBbr2/pN1p1P2/3Nk1P1/1R1pr1pP/8/2Q2pK1/8/8

#2

10 + 9

3297 FIDE Album (1986-1988) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qxe1#
      • 2.Qf6#
    • 1...Re2
      • 2.Qf6#
    • 1...Re3
      • 2.Qf6#
      • 2.Qxe3#
    • 1...Re4
      • 2.Qf6#
  • Tries
    • 1.Bxd7+?
      • 1...Kxd7
        • 2.Qc8#
      • 1...Bxd7!
    • 1.Qxf3?
      • threat
        • 2.Qf6#
      • 1...Re3
        • 2.Qxe3#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rxf7!
    • 1.Qc6?
      • threat
        • 2.Sc5#
      • 1...Re1
        • 2.Qxd5#
      • 1...Re2
        • 2.Qxd5#
      • 1...Re3
        • 2.Qxd5#
      • 1...Re4
        • 2.Qxd5#
      • 1...Rf5
        • 2.Sc4#
      • 1...d4!
    • 1.fxe8S?
      • threat
        • 2.Sc5#
        • 2.Sc7#
        • 2.Sg7#
      • 1...Rf7
        • 2.Sc5#
        • 2.Sc7#
      • 1...Rg8
        • 2.Sc5#
        • 2.Sc7#
      • 1...d4
        • 2.Sc7#
        • 2.Sg7#
      • 1...Rxe8!
    • 1.fxe8B?
      • threat
        • 2.Bcxd7#
        • 2.Bexd7#
      • 1...Rf7
        • 2.Bxf7#
      • 1...Rxe8!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qxe5#
      • 1...Kf5
        • 2.Qxe5#
      • 1...Re1
        • 2.Qf6#
      • 1...Re2
        • 2.Qf6#
      • 1...Re3
        • 2.Qf6#
      • 1...Re4
        • 2.Qf6#
      • 1...Rf5
        • 2.Sc5#
      • 1...d4
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::QAR1(A)
  • Tries
    • Try
      • B(I);CHECK,XP(g)
      • Vars
        • K(e);S_FLIGHT,XB(I)::QAB1(A)
      • Refutation
        • B(h);XB(I)
    • Try
      • Q(A);XP(a)
      • Threat
        • QAR1(A)
      • Vars
        • R(c);OGATEB,P_PINQ(A)::QAR(A),XR(c)
        • R(c);N_GUARD::QAB1(A),XR(c)
      • Refutation
        • R(i);XP(H)
    • Try
      • Q(A);
      • Threat
        • S(G)
      • Vars
        • R(c);N_GUARD::QAB1(A),XP(b)
        • R(c);SBLOCK::QAR(A)+S(E)
      • Refutation
        • P(b);
    • Try
      • P(H);XB(h)
      • Threat
        • DUALS(3)
      • Refutation
        • R(i);XS(H)
    • Try
      • P(H);XB(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(i);N_GUARD::B(H),XR(i)
      • Refutation
        • R(i);XB(H)
  • Actual
    • S(E);
    • Threat
      • QAR1(A),XR(c)
    • Vars
      • K(e);S_FLIGHT::QAR1(A),XR(c)
      • R(c);OGATE::QAR1(A)
      • R(c);SBLOCK::S(G)
      • P(b);OGATE::R1(C),XR(c)
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