MESON Chess Problem Database

Problem Display
PID: 249675 (6R1/8/5p2/3pPp2/3pk3/2PR3K/7B/1B6 w - - 0 1)

Nikitin, V?

Uralski Problemist, 2007

6R1/8/5p2/3pPp2/3pk3/2PR3K/7B/1B6

#2

7 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Re8?
      • threat
        • 2.exf6#
      • 1...fxe5
        • 2.Rxe5#
      • 1...f4!
  • Keys
    • 1.Rgg3!
      • 1...Kf4
        • 2.Rg4#
      • 1...Kxe5
        • 2.Rge3#
      • 1...dxc3
        • 2.Rge3#
      • 1...fxe5
        • 2.Rxd4#
      • 1...f4
        • 2.Rde3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);
      • Threat
        • R(G)+P(F),XP(e)
      • Vars
        • P(e);OGATE,P_SPINP(e),XP(F)::R1(G),XP(e)
      • Refutation
        • P(d);
  • Actual
    • R(G);
    • Vars
      • K(b);P-FLIGHT::B(B)+R(G),DCHECK
      • K(b);P-FLIGHT,XP(F)::B(B)+R(G),DCHECK
      • P(a);N_GUARD,XP(C)::R1(G)
      • P(e);SBLOCK,XP(F)::B(A)+R(D),DCHECK,XP(a)
      • P(d);SBLOCK::B(A)+R(D),DCHECK
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