MESON Chess Problem Database

Problem Display
PID: 63609 (6K1/4B3/1N6/4kp2/4p3/8/4R2P/4NQ2 w - - 0 1)

Dawson, Thomas Rayner

Chess Amateur (The), 1909

6K1/4B3/1N6/4kp2/4p3/8/4R2P/4NQ2

#2

7 + 3

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe4+?
      • 1...fxe4
        • 2.Qf6#
      • 1...Kxe4!
    • 1.Qxf5+?
      • 1...Kd4
        • 2.Bf6#
        • 2.Qc5#
        • 2.Qf6#
      • 1...Kxf5!
  • Keys
    • 1.Qh3!
      • 1...Kd4
        • 2.Qh8#
      • 1...Kf4
        • 2.Qg3#
      • 1...Ke6
        • 2.Rxe4#
      • 1...e3
        • 2.Qxe3#
      • 1...f4
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK,XP(a)
      • Vars
        • P(c);OGATE,SBLOCK,XR(C)::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT,XR(C)
    • Try
      • Q(B);CHECK,XP(c)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(b);N_SPINP(a),S_FLIGHT::QAB(B)
      • K(b);N_SPINP(a),S_FLIGHT::QAB1(B)
      • K(b);P-FLIGHT::R(C),XP(a)
      • P(a);OGATEB::QAR2(B),XP(a)
      • P(c);SBLOCK::S(A)
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