MESON Chess Problem Database

Problem Display
PID: 121255 (6N1/8/5rp1/4k1N1/1p3p2/1K2B3/5Q2/8 w - - 0 1)

Kos, Vladimir

Vox, 1996

6N1/8/5rp1/4k1N1/1p3p2/1K2B3/5Q2/8

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qxf4#
  • Tries
    • 1.Qxf4+?
      • 1...Kd5
        • 2.Se7#
      • 1...Rxf4!
  • Keys
    • 1.Bxf4+!
      • 1...Kd5
        • 2.Se7#
      • 1...Kf5
        • 2.Sh6#
      • 1...Rxf4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,P_SPINP(b)::QAR1(A),XP(b)
  • Tries
    • Try
      • Q(A);CHECK,XP(b)
      • Vars
        • K(c);P-FLIGHT::S(E)
      • Refutation
        • R(d);XQ(A)
  • Actual
    • B(C);CHECK,XP(b)
    • Vars
      • K(c);P-FLIGHT::S(E)
      • R(d);SBLOCK,XB(C)::QAR2(A)
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