MESON Chess Problem Database

Problem Display
PID: 238560 (5b1Q/6pK/6P1/4B2B/rr6/pR3p1k/8/6R1 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Problemist Ukraini, 2011

5b1Q/6pK/6P1/4B2B/rr6/pR3p1k/8/6R1

#2

7 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Rxf3#
  • Tries
    • 1.Bxf3?
      • threat
        • 2.Rh1#
      • 1...Rh4+
        • 2.Bh5#
      • 1...Kh4
        • 2.Kg8#
      • 1...Rf4!
  • Keys
    • 1.Kg8!
      • threat
        • 2.Bg4#
      • 1...Kh4
        • 2.Bxf3#
      • 1...Rg4
        • 2.Bxg4#
      • 1...Rh4
        • 2.Rxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(e);P_PINB(D),SBLOCK::R(B),XP(b)
  • Tries
    • Try
      • B(D);XP(b)
      • Threat
        • R(A)
      • Vars
        • R(e);CHECK,N_GUARD,SBLOCK::R(B)+B(D)
        • K(c);P-FLIGHT::QAR(G)+K(F)
      • Refutation
        • R(e);
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • QAR(G)+B(D),DCHECK
    • Vars
      • K(c);N_SPINP(b),P-FLIGHT::QAR(G)+B(D),XP(b)
      • R(e);::QAR(G)+B(D),DCHECK,XR(e)
      • R(e);SBLOCK::R(B),XP(b)
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