MESON Chess Problem Database

Problem Display
PID: 7794 (1b1B4/8/4p3/r6R/1R1PPk1N/p1N4P/3P1n1P/K7 w - - 0 1)

Mikholap, Aleksandr Mikhailovich

The Problemist, 1993

1b1B4/8/4p3/r6R/1R1PPk1N/p1N4P/3P1n1P/K7

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Bg5#
    • 1...Rg5
      • 2.Bxg5#
    • 1...Ra6
      • 2.Bg5#
    • 1...Ra7
      • 2.Bg5#
    • 1...Ra8
      • 2.Bg5#
    • 1...Be5
      • 2.Bg5#
    • 1...Sxe4
      • 2.Se2#
    • 1...e5
      • 2.Bg5#
      • 2.Rf5#
  • Tries
    • 1.e5?
      • threat
        • 2.Bg5#
      • 1...Sxh3
        • 2.d5#
      • 1...Se4
        • 2.Se2#
      • 1...Rxe5!
  • Keys
    • 1.d5!
      • threat
        • 2.Se2#
      • 1...Sxh3
        • 2.e5#
      • 1...Be5
        • 2.Bg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(d);N_GUARD::B(K)
    • R(d);N_GUARD::B(K),XR(d)
    • B(f);S_CUTR(d)::B(K)
    • S(a);SBLOCK,XP(H)::S(D)
  • Tries
    • Try
      • P(H);
      • Threat
        • B(K)
      • Vars
        • S(a);N_GUARD,XP(E)::R(F)+P(G)
        • S(a);SBLOCK::S(D)
      • Refutation
        • R(d);XP(H)
  • Actual
    • P(G);
    • Threat
      • S(D)
    • Vars
      • S(a);N_GUARD,XP(E)::R(F)+P(H)
      • B(f);P_PINS(D),SBLOCK::B(K)
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