MESON Chess Problem Database

Problem Display
PID: 71994 (1n6/3p4/3P4/7K/5p1P/2p2N1p/2p2pkP/Q2B1R1R w - - 0 1)

Anonymous

Original for 08. WCCT, 2007

1n6/3p4/3P4/7K/5p1P/2p2N1p/2p2pkP/Q2B1R1R

#2

9 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Se1+?
      • 1...fxe1Q
        • 2.Bf3#
      • 1...fxe1B
        • 2.Bf3#
      • 1...fxe1R
        • 2.Bf3#
      • 1...fxe1S!
    • 1.Rxf2+?
      • 1...Kxh1
        • 2.Bxc2#
      • 1...Kxf2!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qg8#
      • 1...cxd1Q
        • 2.Qxf2#
      • 1...cxd1S
        • 2.Se1#
      • 1...cxd1B
        • 2.Qxf2#
      • 1...cxd1R
        • 2.Qxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • P(b);XS(F)::B(B)
      • Refutation
        • P(b);XS(F)
    • Try
      • R(C);CHECK,XP(b)
      • Vars
        • K(c);S_FLIGHT,XR(D)::QAR(A)+B(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT,XR(C)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • P(a);OGATE,P_PINS(F),P_SPINP(b),XB(B)::QAR1(A),XP(b)
      • P(a);P_SPINP(b),XB(B)::S(F)
      • P(a);OGATE,P_SPINP(b),XB(B)::QAR1(A),XP(b)
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