MESON Chess Problem Database

Problem Display
PID: 151464 (2Q5/4P2R/3k4/P2p4/3p4/3K4/8/8 w - - 0 1)

Alvey, George Clarence Vincent

Hobbies, 1908

2Q5/4P2R/3k4/P2p4/3p4/3K4/8/8

#2

5 + 3

119 Tidskrift for Schack 1909
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qe6+?
      • 1...Kc5
        • 2.Qb6#
      • 1...Kc7
        • 2.e8Q#
        • 2.e8R#
      • 1...Kxe6!
  • Keys
    • 1.Qf8!
      • threat
        • 2.e8Q#
      • 1...Kc5
        • 2.e8Q#
        • 2.e8B#
      • 1...Ke5
        • 2.e8Q#
        • 2.e8R#
      • 1...Kc6
        • 2.e8Q#
        • 2.e8B#
      • 1...Ke6
        • 2.e8Q#
        • 2.e8R#
      • 1...Kc7
        • 2.e8Q#
      • 1...Kd7
        • 2.e8Q#

Anticipated by 9404(1902), 17133(1902)

This anticipates 164804(1978), 55187(2004)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAB1(E)
        • K(c);S_FLIGHT::P=Q
      • Refutation
        • K(c);P-FLIGHT,XQ(E)
  • Actual
    • Q(E);
    • Threat
      • P=Q
    • Vars
      • K(c);S_FLIGHT::P=Q
      • K(c);P-FLIGHT::P=Q
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