MESON Chess Problem Database

Problem Display
PID: 18862 (3K4/3R1p2/4k3/6Q1/8/8/3p4/3q4 w - - 0 1)

Garai, Toma

3rd Prize, To Mat, 1958

3K4/3R1p2/4k3/6Q1/8/8/3p4/3q4

#2

3 + 4

3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2007
133 The Problemist Supplement 2017

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Qe7#
    • 1...f6
      • 2.Qd5#
  • Tries
    • 1.Rd5?
      • threat
        • 2.Qe5#
        • 2.Qf5#
      • 1...f5
        • 2.Qxf5#
      • 1...f6
        • 2.Qg8#
      • 1...Qc2
        • 2.Qe5#
      • 1...Qe2
        • 2.Qf5#
      • 1...Qf3
        • 2.Qe5#
      • 1...Qg4
        • 2.Qe5#
      • 1...Qa1
        • 2.Qf5#
      • 1...Qb1
        • 2.Qe5#
      • 1...Qe1
        • 2.Qf5#
      • 1...Qf1
        • 2.Qe5#
      • 1...Qh5!
    • 1.Qc5?
      • threat
        • 2.Rd6#
      • 1...f5
        • 2.Qd6#
        • 2.Qe7#
      • 1...f6
        • 2.Re7#
        • 2.Qd5#
      • 1...Kf6!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Rd6#
      • 1...f5
        • 2.Qd6#
      • 1...f6
        • 2.Qe4#

Anticipated by 18231(1954)

This anticipates 71066(1975)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::QAR1(A)
    • P(d);SBLOCK::QAB1(A)
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::QAB1(A),XP(d)
        • P(d);OGATEB,SBLOCK::QAB(A)
        • Q(a);::QAR1(A)
        • Q(a);::QAB1(A)
      • Refutation
        • Q(a);
    • Try
      • Q(A);
      • Threat
        • R1(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • R1(B)
    • Vars
      • P(d);SBLOCK::QAR1(A)
      • P(d);SBLOCK::QAR2(A)
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