MESON Chess Problem Database

Problem Display
PID: 225652 (8/Q7/3K1p2/1p1PPp2/3pkpP1/5p2/8/1b2NNn1 w - - 0 1)

Onkoud, Abdelaziz

Comm., Praca, 2001

8/Q7/3K1p2/1p1PPp2/3pkpP1/5p2/8/1b2NNn1

#2

7 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Sd2#
  • Tries
    • 1.Qa3?
      • threat
        • 2.Sd2#
      • 1...d3
        • 2.Qb4#
      • 1...Bd3
        • 2.Qxd3#
      • 1...fxg4!
  • Keys
    • 1.exf6!
      • threat
        • 2.Qe7#
      • 1...fxg4
        • 2.Qh7#
      • 1...d3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(d);::S(B)
  • Tries
    • Try
      • Q(G);
      • Threat
        • S(B)
      • Vars
        • P(d);OGATEB::QAR(G)
        • B(a);N_GUARD::QAB1(G),XB(a)
      • Refutation
        • P(h);XP(C)
  • Actual
    • P(E);XP(i)
    • Threat
      • QAR(G)
    • Vars
      • P(h);OGATEB,XP(C)::QAB(G)
      • P(d);::S(B)
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