MESON Chess Problem Database

Problem Display
PID: 190119 (1N1K4/2B5/8/1b1k4/1P4Q1/8/2P5/4n3 w - - 0 1)

Papp, Istvan

Pesti Naplo, 1913

1N1K4/2B5/8/1b1k4/1P4Q1/8/2P5/4n3

#2

6 + 3

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.c4#
    • 1...Bc6
      • 2.c4#
    • 1...Bd7
      • 2.c4#
    • 1...Be8
      • 2.c4#
  • Tries
    • 1.Qf5+?
      • 1...Kc4
        • 2.Qc5#
      • 1...Kd4!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Se7#
      • 1...Kxc6
        • 2.Qe4#
      • 1...Bxc6
        • 2.c4#

This anticipates 21246(1917)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(b);N_GUARD::P(A)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(c);S_FLIGHT,XS(E)::QAB(C)
      • B(b);N_GUARD,SBLOCK,XS(E)::P(A)
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