MESON Chess Problem Database

Problem Display
PID: 227295 (k1Kn4/p2p4/8/8/8/8/8/3R2Q1 w - - 0 1)

Kardos, Tivadar

Deutsche Schachzeitung, 1988

k1Kn4/p2p4/8/8/8/8/8/3R2Q1

#2

3 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Ra1?
      • threat
        • 2.Rxa7#
        • 2.Qxa7#
      • 1...a5
        • 2.Rxa5#
      • 1...a6
        • 2.Rxa6#
      • 1...Sc6!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qb8#
      • 1...axb6
        • 2.Ra1#
      • 1...Sc6
        • 2.Qb7#
      • 1...Sb7
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);P_PINP(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);OGATEB::R(A),XP(a)
      • Refutation
        • S(d);
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • P(a);OGATEB,XQ(B)::R(A)
      • S(d);N_GUARD::QAB1(B)
      • S(d);N_GUARD::QAB1(B),XS(d)
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