MESON Chess Problem Database

Problem Display
PID: 234750 (k1K5/1pp5/8/3p3Q/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2014

k1K5/1pp5/8/3p3Q/8/8/8/8

#2

2 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qa5#
  • Tries
    • 1.Qd1?
      • threat
        • 2.Qa4#
        • 2.Qa1#
      • 1...b5
        • 2.Qa1#
      • 1...Ka7!
    • 1.Qe5?
      • threat
        • 2.Qa1#
      • 1...d4
        • 2.Qa5#
      • 1...Ka7!
  • Keys
    • 1.Qxd5!
      • threat
        • 2.Qa2#
        • 2.Qxb7#
        • 2.Qa5#
      • 1...Ka7
        • 2.Qxb7#
        • 2.Qa5#
      • 1...c5
        • 2.Qa2#
        • 2.Qxb7#
      • 1...c6
        • 2.Qa2#
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • P(a);OGATE::QAR(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAB(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • P(a);OGATE::QAR(A)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(A);P_PINP(b),XP(a)
    • Threat
      • DUALS(3)
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