MESON Chess Problem Database

Problem Display
PID: 7363 (1N2K2b/7B/r3p3/4k3/1P6/2P5/4P3/2N2Q2 w - - 0 1)

Fink, Andrew Charles

StrateGems, 1999

1N2K2b/7B/r3p3/4k3/1P6/2P5/4P3/2N2Q2

#2

8 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2?
      • threat
        • 2.Qd4#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Rd6!
    • 1.Qf4+?
      • 1...Kd5
        • 2.c4#
      • 1...Kxf4!
    • 1.Qf5+?
      • 1...Kd6
        • 2.Qc5#
      • 1...exf5!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qd4#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Sd7#
      • 1...Rd6
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • R(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::P(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);S_FLIGHT::S(A)
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::S(G)
      • R(b);SBLOCK::QAR2(B)
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