MESON Chess Problem Database

Problem Display
PID: 87904 (8/8/8/3K4/4pQ2/5p2/5kp1/R7 w - - 0 1)

Zilahi, Zoltan

Problemista, 1965

8/8/8/3K4/4pQ2/5p2/5kp1/R7

#2

3 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Ra2+?
      • 1...Ke1
        • 2.Qc1#
      • 1...Kf1
        • 2.Qc1#
      • 1...Kg1!
  • Keys
    • 1.Kxe4!
      • threat
        • 2.Qxf3#
      • 1...Ke2
        • 2.Qe3#
      • 1...g1S
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(a);N_SPINP(c),S_FLIGHT::QAR2(B)
        • K(a);P-FLIGHT::QAR(B)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
  • Actual
    • K(C);S_FLIGHT,XP(d)
    • Threat
      • QAR1(B),XP(c)
    • Vars
      • K(a);N_SPINP(c),P-FLIGHT::QAR1(B)
      • P(b);OGATEB::QAR2(B)
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