MESON Chess Problem Database

Problem Display
PID: 154644 (7R/1k4N1/8/Q7/K7/8/8/8 w - - 0 1)

Zimmer, Eligiusz

Sachova skladba, 2006

7R/1k4N1/8/Q7/K7/8/8/8

#2

4 + 1

5454 Near Snap 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Qc7+?
      • 1...Ka6
        • 2.Rh6#
        • 2.Ra8#
      • 1...Kxc7!
  • Keys
    • 1.Se8!
      • 1...Kc6
        • 2.Qb5#
      • 1...Kb8
        • 2.Sd6#
      • 1...Kc8
        • 2.Qc7#

Anticipated by 74150(1929), 11829(1972), 164209(1988)

This anticipates 146940(2012)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);P-FLIGHT::R(D)+S(C)
      • K(a);S_FLIGHT::QAR1(B)
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