MESON Chess Problem Database

Problem Display
PID: 110619 (8/8/2Q5/p3k3/Pp4P1/1K3P2/5P2/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1950

8/8/2Q5/p3k3/Pp4P1/1K3P2/5P2/8

#2

6 + 3

6490 yacpdb 2009
15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd6#
    • 1...Kf4
      • 2.Qf6#
  • Tries
    • 1.Kc4?
      • 1...Kf4
        • 2.Qf6#
      • 1...b3!
    • 1.Qd7?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kf6!
    • 1.Qa6?
      • 1...Kd4
        • 2.Qd6#
      • 1...Kf4
        • 2.Qf6#
      • 1...Kd5!
    • 1.Qb6?
      • 1...Kf4
        • 2.Qe3#
        • 2.Qf6#
      • 1...Kd5!
    • 1.Qe6+?
      • 1...Kd4
        • 2.Qd6#
      • 1...Kf4
        • 2.Qf5#
        • 2.Qe3#
        • 2.Qf6#
      • 1...Kxe6!
    • 1.Qg6?
      • 1...Kd4
        • 2.Qd6#
      • 1...Kf4
        • 2.Qf5#
        • 2.Qf6#
      • 1...Kd5!
    • 1.Qh6?
      • 1...Kd4
        • 2.Qd6#
      • 1...Kd5!
    • 1.f4+?
      • 1...Kd4
        • 2.Qc4#
      • 1...Kxf4!
  • Keys
    • 1.g5!
      • 1...Kd4
        • 2.Qd6#
      • 1...Kf4
        • 2.Qf6#
      • 1...Kf5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR2(F)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAR2(F)
      • Refutation
        • P(a);
    • Try
      • Q(F);
      • Vars
        • K(c);S_FLIGHT::QAR1(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(c);S_FLIGHT::QAR2(F)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(F);
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(F)
      • Refutation
        • K(c);P-FLIGHT,XQ(F)
    • Try
      • Q(F);
      • Vars
        • K(c);S_FLIGHT::QAR2(F)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(c);S_FLIGHT::QAR2(F)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(F)
      • Refutation
        • K(c);S_FLIGHT,XP(C)
  • Actual
    • P(E);
    • Vars
      • K(c);S_FLIGHT::QAR2(F)
      • K(c);P-FLIGHT::QAR1(F)
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