MESON Chess Problem Database

Problem Display
PID: 87926 (n7/2p4Q/1pPpP3/1B1kPP2/4p3/3N4/6R1/K5B1 w - - 0 1)

Labai, Zoltan

1/2 Comm., Buletin Problemistic-25 JT, 1997

n7/2p4Q/1pPpP3/1B1kPP2/4p3/3N4/6R1/K5B1

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...dxe5
      • 2.Qd7#
  • Tries
    • 1.Be3?
      • 1...dxe5
        • 2.Qd7#
      • 1...exd3!
    • 1.Re2?
      • 1...exd3
        • 2.Qh1#
      • 1...dxe5
        • 2.Qd7#
      • 1...e3!
    • 1.Rg4?
      • 1...dxe5
        • 2.Qd7#
      • 1...e3
        • 2.Qh1#
      • 1...exd3!
    • 1.Qh1?
      • 1...exd3
        • 2.Re2#
      • 1...e3
        • 2.Rg4#
      • 1...dxe5!
  • Keys
    • 1.Qh4!
      • 1...exd3
        • 2.Qd4#
      • 1...dxe5
        • 2.Qd8#
      • 1...e3
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATEB,XP(F)::QAR2(J)
  • Tries
    • Try
      • B(B);
      • Vars
        • P(d);OGATEB,XP(F)::QAR2(J)
      • Refutation
        • P(a);XS(D)
    • Try
      • R(C);
      • Vars
        • P(a);OGATEB,XS(D)::QAB(J)
        • P(d);OGATEB,XP(F)::QAR2(J)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Vars
        • P(d);OGATEB,XP(F)::QAR2(J)
        • P(a);OGATEB::QAB(J)
      • Refutation
        • P(a);XS(D)
    • Try
      • Q(J);
      • Vars
        • P(a);OGATEB,XS(D)::QAB(J)+R(C)
        • P(a);OGATEB::QAB(J)+R(C)
      • Refutation
        • P(d);XP(F)
  • Actual
    • Q(J);
    • Vars
      • P(a);OGATE,XS(D)::QAR1(J)
      • P(d);OGATEB,XP(F)::QAR(J)
      • P(a);OGATE::QAB1(J)
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