MESON Chess Problem Database

Problem Display
PID: 57224 (8/3rp3/1B6/8/2PP1p2/PpkPNK2/1p6/1b1Q4 w - - 0 1)

Balashov, Evgeny Fedorovich

Troll, 1995

8/3rp3/1B6/8/2PP1p2/PpkPNK2/1p6/1b1Q4

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Ba5#
    • 1...Rd5
      • 2.Sxd5#
    • 1...Ra7
      • 2.Sd5#
    • 1...Rb7
      • 2.Sd5#
    • 1...Rc7
      • 2.Sd5#
    • 1...Bxd3
      • 2.Qe1#
  • Keys
    • 1.Ke4!
      • threat
        • 2.Ba5#
        • 2.Qe1#
      • 1...Rxd4+
        • 2.Bxd4#
      • 1...Bxd3+
        • 2.Qxd3#
      • 1...fxe3
        • 2.Ba5#
      • 1...Rd5
        • 2.Sxd5#
        • 2.Qe1#
      • 1...Ra7
        • 2.Sd5#
        • 2.Qe1#
      • 1...Rb7
        • 2.Sd5#
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(f);SBLOCK,XP(G)::B(H)
    • R(f);N_GUARD::S(D),XR(f)
    • R(f);N_GUARD::S(D)
    • B(a);SBLOCK,XP(C)::QAB(A)
  • Actual
    • K(E);P_SPINP(C),S_FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • R(f);CHECK,OGATE,XP(G)::B(H),XR(f)
      • B(a);CHECK,OGATE,XP(C)::QAR1(A),XB(a)
      • P(e);XS(D)::B(H)
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