MESON Chess Problem Database

Problem Display
PID: 211347 (3Q4/8/1N6/1k6/8/P6B/K7/8 w - - 0 1)

Turnbull, Ronald

The Problemist, 1986

3Q4/8/1N6/1k6/8/P6B/K7/8

#2

5 + 1

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Sa4!
      • 1...Kxa4
        • 2.Bd7#
      • 1...Kc4
        • 2.Bf1#
      • 1...Ka6
        • 2.Qb6#
      • 1...Kc6
        • 2.Qd7#

Anticipated by 208794(1876), 121390(1908), 170471(1951), 170476(1953), 176158(1954), 24220(1983)

This anticipates 171470(1988), 47813(1998), 165528(1998), 16167(2000), 26009(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT,XS(D)::B(C)
      • K(a);S_FLIGHT::B(C)
      • K(a);S_FLIGHT::QAR1(E)
      • K(a);S_FLIGHT::QAB1(E)
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