MESON Chess Problem Database

Problem Display
PID: 1957 (r3k3/p1p5/Q3K3/8/8/8/8/8 w - - 0 1)

Loyd, Sam

New York Musical World, 1859

r3k3/p1p5/Q3K3/8/8/8/8/8

#2

2 + 4

5206 Sam Loyd and His Chess Problems 1913
887 Mate in Two Moves 1931
5501 Chess Cameos 1936
274 diagrammes 1974
3295 Einfuhrung in die Welt des Schachproblem 1984
15 British Chess Magazine 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Rc8
      • 2.Qxc8#
  • Tries
    • 1.Qa3?
      • threat
        • 2.Qe7#
      • 1...Kd8
        • 2.Qf8#
      • 1...c5!
    • 1.Qc6+?
      • 1...Kd8
        • 2.Qd7#
        • 2.Qxa8#
      • 1...Kf8!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD::QAR2(A),XR(c)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(d);P-FLIGHT::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • K(d);P-FLIGHT::QAR(A)
      • K(d);P-FLIGHT::QAR2(A)
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