MESON Chess Problem Database

Problem Display
PID: 146612 (8/1p4B1/3nP3/p2p1b2/P1kP3Q/3N4/P1KnP3/1R1R4 w - - 0 1)

Boros, Sandor

Niederbayerischen Schachzeitung, 1929

(First published on Tue Nov 19 1929)

8/1p4B1/3nP3/p2p1b2/P1kP3Q/3N4/P1KnP3/1R1R4

#2

11 + 7

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3+
      • 2.exd3#
    • 1...Bh3
      • 2.Se5#
    • 1...Bxe6
      • 2.Se5#
    • 1...Sb3
      • 2.axb3#
    • 1...S2e4
      • 2.Se5#
  • Tries
    • 1.Kxd2?
      • threat
        • 2.Se5#
        • 2.Rbc1#
        • 2.Rdc1#
      • 1...Bxd3
        • 2.exd3#
      • 1...Be4
        • 2.Rbc1#
        • 2.Rdc1#
      • 1...Bg4
        • 2.Rbc1#
        • 2.Rdc1#
      • 1...Sb5
        • 2.Se5#
      • 1...Sf7
        • 2.Rbc1#
        • 2.Rdc1#
      • 1...Se4+!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qc7#
      • 1...Bxd3+
        • 2.exd3#
      • 1...Sb3
        • 2.axb3#
      • 1...S2e4
        • 2.Se5#
      • 1...S6e4
        • 2.Sb2#
      • 1...Sb5
        • 2.Qc5#
      • 1...Se8
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(e);CHECK,OGATE,XS(F)::P(E),XB(e)
    • B(e);N_PINS(F)::S(F)
    • B(e);N_PINS(F),XP(J)::S(F)
    • S(a);OGATE::P(C),XS(a)
    • S(a);N_PINS(F)::S(F)
  • Tries
    • Try
      • K(D);N_SPINS(F),P-FLIGHT,XS(a)
      • Threat
        • DUALS(3)
      • Vars
        • B(e);OGATE,XS(F)::P(E),XB(e)
        • S(f);::S(F)
      • Refutation
        • S(f);CHECK
  • Actual
    • Q(I);
    • Threat
      • QAR(I)
    • Vars
      • B(e);CHECK,OGATE,XS(F)::P(E),XB(e)
      • S(a);OGATE::P(C),XS(a)
      • S(a);N_PINS(F)::S(F)
      • S(f);N_PINS(F)::S(F)
      • S(f);OGATE::QAR1(I)
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