MESON Chess Problem Database

Problem Display
PID: 201712 (4b3/2Qp4/6P1/2Nk4/8/2K2P1n/8/8 w - - 0 1)

Harcz, Karoly

Uj Nemezdek, 1922

4b3/2Qp4/6P1/2Nk4/8/2K2P1n/8/8

#2

5 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se4?
      • threat
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#
      • 1...Ke6!
    • 1.Sb7?
      • threat
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#
      • 1...Ke6!
  • Keys
    • 1.Sd3!
      • 1...Ke6
        • 2.Qe5#
      • 1...Bxg6
        • 2.Qxd7#
      • 1...Bf7
        • 2.Qxd7#
      • 1...Sg1
        • 2.Sf4#
      • 1...Sf2
        • 2.Sf4#
      • 1...Sf4
        • 2.Sxf4#
      • 1...Sg5
        • 2.Sf4#
      • 1...d6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(E)
      • Vars
        • P(c);::QAR1(E),XP(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • QAR1(E)
      • Vars
        • P(c);::QAR1(E),XP(c)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(b);S_FLIGHT::QAR1(E)
      • B(d);N_GUARD,XP(D)::QAR2(E),XP(c)
      • B(d);N_GUARD::QAR2(E),XP(c)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(a)
      • P(c);SBLOCK::QAB1(E)
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