MESON Chess Problem Database

Problem Display
PID: 197051 (4Rb2/4pk2/6R1/6pB/4K3/8/8/8 w - - 0 1)

Parkhomenko, Nikolai A

Zadachi i Etyudi, 1996

4Rb2/4pk2/6R1/6pB/4K3/8/8/8

#2

4 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe8
      • 2.Rd6#
    • 1...Bg7
      • 2.Ra6#
      • 2.Rb6#
      • 2.Rc6#
      • 2.Rd6#
      • 2.Rh6#
  • Tries
    • 1.Kf5?
      • threat
        • 2.Rxg5#
      • 1...Kxe8
        • 2.Rd6#
      • 1...g4
        • 2.Rxg4#
        • 2.Rg5#
      • 1...e6+!
  • Keys
    • 1.Ke5!
      • threat
        • 2.Rxg5#
      • 1...Bg7+
        • 2.Rf6#
      • 1...Kxe8
        • 2.Rd6#
      • 1...g4
        • 2.Rxg4#
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XR(D)::B(B)+R(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • B(B)+R(C),XP(a)
      • Vars
        • K(c);S_FLIGHT,XR(D)::B(B)+R(C)
      • Refutation
        • P(b);CHECK
  • Actual
    • K(A);P-FLIGHT
    • Threat
      • B(B)+R(C),XP(a)
    • Vars
      • B(d);CHECK,SBLOCK::B(B)+R(C),DCHECK
      • K(c);S_FLIGHT,XR(D)::B(B)+R(C)
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