MESON Chess Problem Database

Problem Display
PID: 153631 (Q6K/8/2P1pP2/1Pp1k3/2p1P3/2P3P1/4P3/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1950

Q6K/8/2P1pP2/1Pp1k3/2p1P3/2P3P1/4P3/8

#2

9 + 4

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qb8#
  • Tries
    • 1.Kg7?
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxe4!
    • 1.Qb7?
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qg7#
      • 1...Kxe4!
    • 1.Qa7?
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qg7#
      • 1...Kxe4!
    • 1.Qc8?
      • 1...Kxe4
        • 2.Qxe6#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6!
    • 1.Qe8?
      • 1...Kxe4
        • 2.Qxe6#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6!
  • Keys
    • 1.Qg8!
      • 1...Kxe4
        • 2.Qxe6#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(H)
  • Tries
    • Try
      • K(I);S_FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAB(H)
      • Refutation
        • K(c);P-FLIGHT,XP(D)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT::QAB(H)
        • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);P-FLIGHT,XP(D)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT::QAB(H)
        • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);P-FLIGHT,XP(D)
    • Try
      • Q(H);
      • Vars
        • K(c);P-FLIGHT,XP(D)::QAR2(H),XP(d)
        • K(c);S_FLIGHT::QAB(H)
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • Q(H);P_PINP(d)
      • Vars
        • K(c);P-FLIGHT,XP(D)::QAR2(H),XP(d)
        • K(c);N_SPINP(d),S_FLIGHT::QAB(H)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT,XP(G)
  • Actual
    • Q(H);
    • Vars
      • K(c);P-FLIGHT,XP(D)::QAR2(H),XP(d)
      • K(c);S_FLIGHT::QAB(H)
      • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
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