MESON Chess Problem Database

Problem Display
PID: 151987 (2Bn4/1pN5/p1k1q2Q/1R2B1p1/4P2b/1R6/K7/8 w - - 0 1)

Bosetti, Fabio

The Problemist, 2013

2Bn4/1pN5/p1k1q2Q/1R2B1p1/4P2b/1R6/K7/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Rc3#
      • 2.Qxd6#
    • 1...Qf6
      • 2.Rc3#
    • 1...Qg6
      • 2.Rc3#
    • 1...Qxh6
      • 2.Rc3#
  • Tries
    • 1.Sxa6?
      • threat
        • 2.Sb8#
        • 2.Rc5#
        • 2.Rb6#
      • 1...Qd6
        • 2.Rc5#
        • 2.Rb6#
        • 2.Qxd6#
      • 1...Bf2
        • 2.Sb8#
      • 1...b6
        • 2.Sb8#
        • 2.Rxb6#
      • 1...bxa6!
    • 1.Sxe6?
      • threat
        • 2.Sd4#
        • 2.Sxd8#
        • 2.Rc5#
        • 2.Rb6#
      • 1...Sxe6
        • 2.Qxe6#
      • 1...Bf2
        • 2.Sd4#
        • 2.Sxd8#
      • 1...Sf7
        • 2.Sd4#
        • 2.Sd8#
        • 2.Rc5#
        • 2.Rb6#
      • 1...b6
        • 2.Sd4#
        • 2.Sxd8#
        • 2.Rxb6#
      • 1...axb5!
    • 1.Rd5?
      • threat
        • 2.Bd7#
      • 1...Qd6
        • 2.Qxd6#
      • 1...b6
        • 2.Rc3#
      • 1...b5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Se7#
      • 1...axb5
        • 2.Rc3#
      • 1...Qd6
        • 2.Qxd6#
      • 1...g4
        • 2.Qc1#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(e);N_PINR(B)::R(B)
    • Q(e);N_PINR(B),N_SPINQ(e),XQ(F)::R(B)
  • Tries
    • Try
      • S(G);XP(c)
      • Threat
        • DUALS(3)
      • Vars
        • B(a);::S(G)
      • Refutation
        • P(f);XS(G)
    • Try
      • S(G);N_SPINR(B),XQ(e)
      • Threat
        • DUALS(4)
      • Vars
        • S(g);OGATE,P_SPINS(g),XS(G)::QAR2(F),XS(g)
      • Refutation
        • P(c);XR(D)
    • Try
      • R(D);N_SPINR(B)
      • Threat
        • B(H)
      • Vars
        • Q(e);OGATE::QAR1(F),XQ(e)
        • P(f);SBLOCK::R(B)
      • Refutation
        • P(f);
  • Actual
    • S(G);N_SPINR(B)
    • Threat
      • S(G)
    • Vars
      • P(c);SBLOCK,XR(D)::R(B)
      • Q(e);OGATE::QAR1(F),XQ(e)
      • P(b);OGATE::QAR(F)
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