MESON Chess Problem Database

Problem Display
PID: 265071 (5N2/8/K2P2B1/2pkB3/Q1N2pp1/2p3p1/3Pn3/2bRRbnq w - - 0 1)

Handloser, Ralf Chris

Schweizerische Schachzeitung, 2013

5N2/8/K2P2B1/2pkB3/Q1N2pp1/2p3p1/3Pn3/2bRRbnq

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Bf7#
  • Tries
    • 1.dxc3+?
      • 1...Sd4
        • 2.Bf7#
      • 1...Bd2!
    • 1.d3?
      • threat
        • 2.Bf7#
      • 1...Qh5
        • 2.Be4#
      • 1...Qh6
        • 2.Be4#
      • 1...Sd4
        • 2.Sb6#
      • 1...Qh7!
  • Keys
    • 1.d4!
      • threat
        • 2.Sb6#
      • 1...Sxd4
        • 2.Bf7#
      • 1...cxd4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(d);SBLOCK::B(I)
  • Tries
    • Try
      • P(C);CHECK,XP(f)
      • Vars
        • S(e);P_PINS(E),P_SPINS(e)::B(I)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • P(C);
      • Threat
        • B(I)
      • Vars
        • Q(d);N_GUARD::B(I)
        • S(e);::S(E)
      • Refutation
        • Q(d);
  • Actual
    • P(C);
    • Threat
      • S(E)
    • Vars
      • S(e);P_PINS(E),P_SPINS(e),XP(C)::B(I)
      • P(j);OGATEB,P_SPINP(j),XP(C)::QAR2(D)
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