MESON Chess Problem Database

Problem Display
PID: 21997 (8/2p5/2K4N/4k1P1/4p3/4Q3/8/8 w - - 0 1)

Kipping, Cyril Stanley

Chess Amateur (The), 1923

8/2p5/2K4N/4k1P1/4p3/4Q3/8/8

#2

4 + 3

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qxe4#
  • Tries
    • 1.Kxc7?
      • 1...Ke6
        • 2.Qxe4#
      • 1...Kd5!
    • 1.Qd2?
      • 1...e3
        • 2.Qxe3#
      • 1...Ke6!
    • 1.Qc3+?
      • 1...Ke6
        • 2.Qf6#
      • 1...Kf4!
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qf6#
      • 1...Ke6
        • 2.Qf6#
      • 1...e3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A),XP(a)
  • Tries
    • Try
      • K(C);P-FLIGHT,XP(c)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);N_PINP(a)
    • Threat
      • QAB1(A)
    • Vars
      • K(b);P-FLIGHT::QAR1(A)
      • P(a);OGATEB::QAR2(A),XP(a)
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