MESON Chess Problem Database

Problem Display
PID: 240387 (Bb6/p4b2/K1p2Q2/R2Pn1p1/4k3/3N1p2/1NPPq3/4R1B1 w - - 0 1)

Zilahi, Zoltan

Tijdschrift vd KNSB, 1939

Bb6/p4b2/K1p2Q2/R2Pn1p1/4k3/3N1p2/1NPPq3/4R1B1

#2

11 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd3
      • 2.cxd3#
    • 1...Sc4
      • 2.Sf2#
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Ra4+?
      • 1...Kxd5
        • 2.Rd4#
      • 1...Sc4!
  • Keys
    • 1.Qxg5!
      • threat
        • 2.Qf4#
      • 1...Sxd3
        • 2.cxd3#
      • 1...Sc4
        • 2.Sc5#
      • 1...Sg4
        • 2.Ra4#
      • 1...Sg6
        • 2.Ra4#
      • 1...Sd7
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(d);OGATE,XS(F)::P(D),XS(d)
    • S(d);N_PINS(F)::S(F)
    • P(e);N_GUARD::QAR1(J)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(c);N_SPINQ(a),P_SPINP(f),S_FLIGHT,XP(H)::R1(G)
      • Refutation
        • S(d);N_PINS(F),P_SPINS(d)
  • Actual
    • Q(J);XP(e)
    • Threat
      • QAR1(J)
    • Vars
      • S(d);OGATE,XS(F)::P(D),XS(d)
      • S(d);N_PINS(F)::S(F)
      • S(d);N_GUARD::R(G)
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