MESON Chess Problem Database

Problem Display
PID: 236536 (1k6/pP1K4/p2R2pb/2P3P1/5R2/6p1/7B/7B w - - 0 1)

Dolginovich, Nikolai Osipovich

Rochade Europa, 1994

1k6/pP1K4/p2R2pb/2P3P1/5R2/6p1/7B/7B

#2

8 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf8
      • 2.Rxf8#
  • Tries
    • 1.Re4?
      • threat
        • 2.Re8#
      • 1...Kxb7
        • 2.Rb4#
      • 1...g2
        • 2.Rb6#
      • 1...Bxg5!
    • 1.Re6?
      • threat
        • 2.Re8#
      • 1...g2
        • 2.Rb4#
      • 1...Bxg5!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Rc8#
      • 1...Kxb7
        • 2.Rb6#
      • 1...g2
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(d);N_GUARD::R(C),XB(d)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • K(f);OGATEB,P-FLIGHT,XP(G)::B(A)+R(C),DCHECK
        • P(a);OGATEB::B(B)+R(F)
      • Refutation
        • B(d);XP(E)
    • Try
      • R(F);
      • Threat
        • R(F)
      • Vars
        • P(a);OGATEB::B(B)+R(C)
      • Refutation
        • B(d);XP(E)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • K(f);OGATEB,P-FLIGHT,XP(G)::B(A)+R(F),DCHECK
      • P(a);OGATEB::B(B)+R(C)
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