MESON Chess Problem Database

Problem Display
PID: 67039 (6r1/3p3N/3P2p1/2n2k2/1R2N3/3Q4/7R/3Kn3 w - - 0 1)

Willmott, Arthur

Problem Observer, 2006

6r1/3p3N/3P2p1/2n2k2/1R2N3/3Q4/7R/3Kn3

#2

7 + 6

136 Problem Observer 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Sf2#
      • 2.Sxc5#
      • 2.Sef6#
    • 1...Sxe4
      • 2.Qxe4#
  • Tries
    • 1.Sxc5+?
      • 1...Ke5
        • 2.Re2#
      • 1...Sxd3!
  • Keys
    • 1.Re2!
      • threat
        • 2.Sg3#
      • 1...Kf4
        • 2.Sxc5#
      • 1...Kg4
        • 2.Sef6#
      • 1...Ke5
        • 2.Sxc5#
      • 1...Ke6
        • 2.Seg5#
      • 1...Sxe4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE,P_SPINS(b),XS(E)::QAB1(C),XS(b)
  • Tries
    • Try
      • S(E);CHECK,XS(b)
      • Vars
        • K(c);P-FLIGHT::R(B)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • R(B);
    • Threat
      • QAB(C)+S(E),DCHECK
    • Vars
      • K(c);P-FLIGHT::R(D)+S(E),XS(b)
      • K(c);S_FLIGHT::R(D)+S(E),DCHECK
      • K(c);P-FLIGHT::R(B)+S(E),XS(b)
      • K(c);S_FLIGHT::R(B)+S(E),DCHECK
      • S(b);OGATE,P_SPINS(b),XS(E)::QAB1(C),XS(b)
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