MESON Chess Problem Database

Problem Display
PID: 185824 (r3k3/1p6/p3K3/2N1N3/2Q1R3/8/8/8 w q - 0 1)

Filonenko, Viktor I

Freie Presse, 2000

(First published on Fri Jan 21 2000)

r3k3/1p6/p3K3/2N1N3/2Q1R3/8/8/8

#2

5 + 4

15391 Problemschach-Jahrbuch (2000) 2001
3713 Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...0-0-0
      • 2.Sxa6#
      • 2.Scd7#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Qg8#
      • 1...Kf8
        • 2.Sg6#
        • 2.Sed7#
        • 2.Qf7#
      • 1...0-0-0
        • 2.Sxa6#
        • 2.Scd7#
      • 1...Kd8!
  • Keys
    • 1.Kd6!
      • threat
        • 2.Qg8#
      • 1...Rd8+
        • 2.Sed7#
      • 1...0-0-0+
        • 2.Scd7#
      • 1...Kd8
        • 2.Qg8#
      • 1...Kf8
        • 2.Qf7#

Anticipated by 174692(1960)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAR2(A)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • QAR2(A)
    • Vars
      • R(c);CHECK,SBLOCK::R(B)+S(D)
      • K(d);0-0-0,CHECK::QAR(A)+S(C)
      • K(d);P-FLIGHT::QAR(A)
      • K(d);P-FLIGHT::QAR1(A)
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