MESON Chess Problem Database

Problem Display
PID: 240057 (N7/2pK4/3PP3/p1k2nBR/1nPN4/2P5/BQp1p3/8 w - - 0 1)

Mosiashvili, Givi

64 Shakhmatnoe obozrenie, 2006

N7/2pK4/3PP3/p1k2nBR/1nPN4/2P5/BQp1p3/8

#2

11 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxa2
      • 2.Qb5#
    • 1...Sd3
      • 2.Qb5#
    • 1...Sd5
      • 2.Qb5#
    • 1...Sa6
      • 2.Qb5#
    • 1...Sc6
      • 2.Qb5#
    • 1...Sxd4
      • 2.cxd4#
    • 1...a4
      • 2.Qxb4#
      • 2.cxb4#
  • Tries
    • 1.Be7?
      • threat
        • 2.dxc7#
      • 1...Sxa2
        • 2.Qb5#
      • 1...cxd6
        • 2.Bxd6#
      • 1...Sd5
        • 2.Qb5#
      • 1...Sc6
        • 2.Qb5#
      • 1...c6!
    • 1.dxc7?
      • threat
        • 2.Be7#
      • 1...Sxa2
        • 2.Qb5#
        • 2.c8Q#
        • 2.c8R#
      • 1...Sd5
        • 2.Qb5#
      • 1...Sc6
        • 2.Qb5#
        • 2.Qb6#
      • 1...Se7
        • 2.Bxe7#
      • 1...Sd6!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qxa5#
      • 1...Sxd4
        • 2.Be3#
      • 1...Sxd6
        • 2.Be7#
      • 1...a4
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(c);OGATE,XB(A)::QAR1(B)
    • S(c);OGATE::QAR1(B)
    • S(f);OGATE,XS(E)::P(C),XS(f)
  • Tries
    • Try
      • B(F);P_PINS(f)
      • Threat
        • B(F)+P(H),XP(g)
      • Vars
        • S(c);OGATE,XB(A)::QAR1(B)
        • P(g);OGATE,P_SPINP(g),XP(H)::B(F),XP(g)
        • S(c);N_SPINS(f),OGATE::QAR1(B)
        • S(c);OGATE::QAR1(B)
      • Refutation
        • P(g);
    • Try
      • P(H);XP(g)
      • Threat
        • B(F)
      • Vars
        • S(c);OGATE::QAR1(B)
        • S(f);::R(G)+B(F),DCHECK,XS(f)
      • Refutation
        • S(f);
  • Actual
    • Q(B);P_PINS(c)
    • Threat
      • QAR2(B),XP(d)
    • Vars
      • S(f);OGATEB,XS(E)::R(G)+B(F)
      • S(f);OGATEB,XP(H)::R(G)+B(F)
      • P(d);N_GUARD::QAB1(B),XS(c)
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