MESON Chess Problem Database

Problem Display
PID: 153432 (4BR2/Kp4p1/2P5/2pkPpN1/b1RP2P1/1P6/1p1NPp1r/B7 w - - 0 1)

Grinblat, Arieh

StrateGems, 2012

4BR2/Kp4p1/2P5/2pkPpN1/b1RP2P1/1P6/1p1NPp1r/B7

#2

13 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc6
      • 2.Bf7#
    • 1...b1Q
      • 2.Rxc5#
    • 1...b1S
      • 2.Rxc5#
    • 1...b1B
      • 2.Rxc5#
    • 1...b1R
      • 2.Rxc5#
    • 1...fxg4
      • 2.e4#
    • 1...bxc6
      • 2.Bf7#
  • Tries
    • 1.Kb6?
      • threat
        • 2.Bf7#
      • 1...cxd4
        • 2.Rc5#
      • 1...Rh6!
    • 1.Sdf3?
      • threat
        • 2.Rxc5#
      • 1...cxd4
        • 2.Bf7#
      • 1...b6!
  • Keys
    • 1.Rxf5!
      • threat
        • 2.e4#
      • 1...cxd4
        • 2.Bf7#
      • 1...b1Q
        • 2.Rxc5#
      • 1...b1B
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(d);SBLOCK,XP(J)::B(L)
    • P(a);::R1(E),XP(e)
    • P(g);N_GUARD,XP(G)::P(C)
    • P(h);SBLOCK,XP(J)::B(L)
  • Tries
    • Try
      • K(K);S_FLIGHT
      • Threat
        • B(L)
      • Vars
        • P(e);SBLOCK,XP(F)::R1(E)
      • Refutation
        • R(c);P_PINP(J)
    • Try
      • S(B);
      • Threat
        • R1(E),XP(e)
      • Vars
        • P(e);XP(F)::B(L)
      • Refutation
        • P(h);
  • Actual
    • R(M);XP(g)
    • Threat
      • P(C)
    • Vars
      • P(e);XP(F)::B(L)
      • P(a);::R1(E),XP(e)
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