MESON Chess Problem Database

Problem Display
PID: 15716 (8/5pB1/R2PpP2/1R1n1p2/2pk4/2p2Q1N/2p5/2K4B w - - 0 1)

Caillaud, Michel

1st HM., Lacny-60 JT, 1987

8/5pB1/R2PpP2/1R1n1p2/2pk4/2p2Q1N/2p5/2K4B

#2

9 + 8

3297 FIDE Album (1986-1988) 1995
133 The Problemist Supplement 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qxc3#
      • 2.Qe3#
      • 2.Qf4#
    • 1...f4
      • 2.Qe4#
    • 1...e5
      • 2.Rxd5#
  • Tries
    • 1.Bh6?
      • 1...Ke5
        • 2.Qxc3#
      • 1...Sxf6
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sb4
        • 2.Qe3#
      • 1...Sb6
        • 2.Qe3#
      • 1...Sc7
        • 2.Qe3#
      • 1...Se7
        • 2.Qe3#
      • 1...f4
        • 2.Qe4#
      • 1...e5
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Sf4!
    • 1.Ra3?
      • 1...Ke5
        • 2.Qf4#
      • 1...Sxf6
        • 2.Qxc3#
      • 1...Sb4
        • 2.Qxc3#
      • 1...Sf4
        • 2.Qxc3#
      • 1...Sb6
        • 2.Qxc3#
      • 1...Sc7
        • 2.Qxc3#
      • 1...Se7
        • 2.Qxc3#
      • 1...f4
        • 2.Qe4#
      • 1...e5
        • 2.Rxd5#
      • 1...Se3!
    • 1.Qxf5?
      • threat
        • 2.Qe4#
      • 1...Ke3
        • 2.Qe4#
      • 1...exf5!
  • Keys
    • 1.Sf2!
      • 1...Ke5
        • 2.Qe3#
      • 1...Sxf6
        • 2.Qf4#
      • 1...Se3
        • 2.Qf4#
      • 1...Sb4
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sb6
        • 2.Qf4#
      • 1...Sc7
        • 2.Qf4#
      • 1...Se7
        • 2.Qf4#
      • 1...f4
        • 2.Qe4#
      • 1...e5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD::QAR1(C)
    • P(g);N_GUARD::R1(E),XS(e)
  • Tries
    • Try
      • B(I);
      • Vars
        • K(d);P_SPINS(e),S_FLIGHT::QAB(C),XP(b)
        • S(e);N_GUARD,XP(H)::QAB1(C)
        • S(e);N_GUARD::QAB1(C),XS(e)
        • S(e);N_GUARD::QAB1(C)
        • P(f);N_GUARD::QAR1(C)
      • Refutation
        • S(e);
    • Try
      • R(F);
      • Vars
        • K(d);P_SPINS(e),S_FLIGHT::QAB1(C)
        • S(e);N_GUARD,P_SPINS(e),XP(H)::QAB1(C),XP(b)
        • S(e);N_GUARD::QAB1(C),XP(b)
        • P(f);N_GUARD::QAR1(C)
        • P(g);N_GUARD::R1(E),XS(e)
      • Refutation
        • S(e);
    • Try
      • Q(C);XP(f)
      • Threat
        • QAR1(C)
      • Vars
        • K(d);S_FLIGHT::QAR1(C)
      • Refutation
        • P(g);XQ(C)
  • Actual
    • S(D);
    • Vars
      • K(d);P_SPINS(e),S_FLIGHT::QAR2(C)
      • S(e);N_GUARD,P_SPINS(e),XP(H)::QAR2(C)
      • S(e);N_GUARD::QAR2(C)
      • S(e);N_GUARD::QAR2(C),XS(e)
      • P(f);N_GUARD::QAR1(C)
      • P(g);N_GUARD::R1(E),XS(e)
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