MESON Chess Problem Database

Problem Display
PID: 161961 (4RQ1B/1p3K2/nrp5/3k4/8/8/8/5B2 w - - 0 1)

Smedley, Don A

Chess, 1956

4RQ1B/1p3K2/nrp5/3k4/8/8/8/5B2

#2

5 + 5

5454 Near Snap 2017
3713 Snap 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qe7?
      • threat
        • 2.Rd8#
        • 2.Qe5#
      • 1...Sc5
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...c5!
  • Keys
    • 1.Ke7!
      • threat
        • 2.Qf5#
      • 1...Ke4
        • 2.Kd6#
      • 1...Kc5
        • 2.Ke6#
      • 1...c5
        • 2.Qf3#

Anticipated by 4776(1891)

This anticipates 37439(1969), 961(1994)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);SBLOCK::QAR1(D)
        • S(b);::QAR1(D)
      • Refutation
        • P(d);
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • QAR2(D)
    • Vars
      • K(a);S_FLIGHT::R(C)+K(B)
      • K(a);P-FLIGHT::QAB(D)+K(B)
      • P(d);SBLOCK::QAB(D)
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