MESON Chess Problem Database

Problem Display
PID: 189654 (1N4B1/2N2n2/1p6/4k1P1/2p5/2p3K1/2Q5/8 w - - 0 1)

Dunka, Gyorgy Jusztin

Pesti Naplo, 1911

1N4B1/2N2n2/1p6/4k1P1/2p5/2p3K1/2Q5/8

#2

6 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Sc6#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Sc6#
        • 2.Sd7#
        • 2.Qd5#
      • 1...Sxg5
        • 2.Sd7#
      • 1...Sd8
        • 2.Sd7#
        • 2.Qd5#
      • 1...cxd3!
  • Keys
    • 1.Sb5!
      • 1...Kd5
        • 2.Qf5#
      • 1...Ke6
        • 2.Qe4#
      • 1...Sxg5
        • 2.Sd7#
      • 1...Sd6
        • 2.Sc6#
        • 2.Sd7#
      • 1...Sh6
        • 2.Sc6#
        • 2.Sd7#
      • 1...Sd8
        • 2.Sd7#
      • 1...Sh8
        • 2.Sc6#
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(e);SBLOCK::S(E)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • S(e);XP(C)::S(E)
      • Refutation
        • P(b);XQ(A)
  • Actual
    • S(D);
    • Vars
      • K(c);P-FLIGHT,P_SPINS(e)::QAR2(A)
      • S(e);XP(C)::S(E)
      • S(e);::S(E)
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