MESON Chess Problem Database

Problem Display
PID: 120136 (8/2N5/rP6/8/1k5K/4Q3/8/3B4 w - - 0 1)

Cisar, Vaclav

Nya Dagligt Allehanda, 1909

8/2N5/rP6/8/1k5K/4Q3/8/3B4

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qc5#
  • Tries
    • 1.Qd4+?
      • 1...Ka5
        • 2.Qc5#
      • 1...Ka3!
    • 1.Qb3+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Kc5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qc5#
      • 1...Kc4
        • 2.Qb3#
      • 1...Ka5
        • 2.Qc5#
      • 1...Kb5
        • 2.Qc5#
      • 1...Ra5
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);P-FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAR2(B)
      • K(a);P-FLIGHT::QAR1(B)
      • R(b);SBLOCK::QAR1(B)
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