MESON Chess Problem Database

Problem Display
PID: 107861 (8/3pK3/2p1p3/4k3/3p4/1BP1p1N1/3N4/2Q2R2 w - - 0 1)

Caillaud, Michel

Messigny, 2002

8/3pK3/2p1p3/4k3/3p4/1BP1p1N1/3N4/2Q2R2

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Sf3#
    • 1...dxc3
      • 2.Qxc3#
  • Tries
    • 1.Bxe6?
      • threat
        • 2.Sc4#
        • 2.Rf5#
      • 1...exd2
        • 2.Rf5#
      • 1...dxc3
        • 2.Qxc3#
      • 1...d5
        • 2.Rf5#
      • 1...dxe6!
    • 1.Qb2?
      • threat
        • 2.cxd4#
      • 1...dxc3
        • 2.Qxc3#
      • 1...d3
        • 2.c4#
      • 1...c5!
    • 1.Qa3?
      • threat
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#
      • 1...c5!
    • 1.Qa1?
      • threat
        • 2.cxd4#
      • 1...dxc3
        • 2.Qxc3#
      • 1...d3
        • 2.c4#
      • 1...c5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qh5#
      • 1...dxc3
        • 2.Sc4#
      • 1...e2
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(a);::S(C)
    • P(b);OGATE,XP(E)::QAB(A),XP(b)
  • Tries
    • Try
      • B(D);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);XS(C)::R1(B)
        • P(b);OGATE,XP(E)::QAB(A),XP(b)
        • P(f);::R1(B)
      • Refutation
        • P(f);XB(D)
    • Try
      • Q(A);
      • Threat
        • P(E),XP(b)
      • Vars
        • P(b);OGATE,P_SPINP(b),XP(E)::QAB(A),XP(b)
        • P(b);::QAB(A)+P(E)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(f);::QAB1(A),XP(f)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Threat
        • P(E),XP(b)
      • Vars
        • P(b);OGATE,P_SPINP(b),XP(E)::QAB(A),XP(b)
        • P(b);::QAB(A)+P(E)
      • Refutation
        • P(d);
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • P(b);XP(E)::S(C)
      • P(a);OGATEB::QAR(A),XP(a)
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