MESON Chess Problem Database

Problem Display
PID: 4814 (8/3B4/3B4/3k4/3p4/6Q1/8/4K3 w - - 0 1)

te Kolste, JW

Utrecht Dagblad, 1891

8/3B4/3B4/3k4/3p4/6Q1/8/4K3

#2

4 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2008

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qxd3#
  • Tries
    • 1.Ke2?
      • 1...d3+
        • 2.Qxd3#
      • 1...Ke4
        • 2.Qe5#
        • 2.Qg2#
        • 2.Qf3#
      • 1...Kc4!
    • 1.Kf2?
      • 1...Ke4
        • 2.Qf3#
      • 1...d3
        • 2.Qxd3#
      • 1...Kc4!
    • 1.Qg6?
      • threat
        • 2.Qe6#
      • 1...d3
        • 2.Qxd3#
      • 1...Kc4!
  • Keys
    • 1.Kd2!
      • 1...Kc4
        • 2.Qg8#
      • 1...Ke4
        • 2.Qg2#
      • 1...d3
        • 2.Qxd3#

Anticipated by 4813(1891)

This anticipates 183206(1907)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAR2(B),XP(a)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(a);CHECK,OGATEB::QAR2(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(b);S_FLIGHT::QAB(B)
      • P(a);OGATEB::QAR2(B),XP(a)
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