MESON Chess Problem Database

Problem Display
PID: 187941 (1K6/6Q1/4NR2/2ppk3/1b2r1p1/1P2r1q1/4P3/8 w - - 0 1)

Hoffmann, Karoly

Pesti Naplo, 1910

1K6/6Q1/4NR2/2ppk3/1b2r1p1/1P2r1q1/4P3/8

#2

6 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qc7#
  • Tries
    • 1.Rg6+?
      • 1...Kd6
        • 2.Qc7#
      • 1...Kf5+!
    • 1.Rh6+?
      • 1...Kd6
        • 2.Qc7#
      • 1...Kf5+!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sc6#
      • 1...Kxd4+
        • 2.Rf4#
      • 1...Rxd4
        • 2.Qe7#
      • 1...cxd4
        • 2.Qg5#
      • 1...Rf4
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(h);S_FLIGHT::QAB1(E)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(h);S_FLIGHT::QAB1(E)
      • Refutation
        • K(h);CHECK,P-FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(h);S_FLIGHT::QAB1(E)
      • Refutation
        • K(h);CHECK,P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(h);CHECK,S_FLIGHT,XS(C)::QAB(E)+R(D)
      • R(d);SBLOCK,XS(C)::QAR2(E)
      • P(f);SBLOCK,XS(C)::QAR2(E)
      • R(d);SBLOCK::QAB(E)+R(D),DCHECK
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