MESON Chess Problem Database

Problem Display
PID: 9663 (4Q3/4PPp1/p3k3/2K2pP1/5p2/1b6/8/8 w - - 0 1)

Palkoska, Emil

HM., Tidskrift for Schack, 1907

4Q3/4PPp1/p3k3/2K2pP1/5p2/1b6/8/8

#2

5 + 6

3360 Simple Two-move Themes 1924
887 Mate in Two Moves 1931
5501 Chess Cameos 1936
3310 2345 Chess Problems 1997
56 The Problemist 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Qc6+?
      • 1...Kxe7
        • 2.Qe8#
      • 1...Kxf7
        • 2.e8Q#
      • 1...Ke5!
    • 1.Qb8?
      • threat
        • 2.e8Q#
      • 1...Kd7
        • 2.e8Q#
      • 1...Kxe7
        • 2.Qe8#
      • 1...Kxf7
        • 2.e8Q#
      • 1...Ba4!
    • 1.Qc8+?
      • 1...Kxe7
        • 2.Qe8#
        • 2.f8Q#
      • 1...Kxf7
        • 2.e8Q#
      • 1...Ke5!
  • Keys
    • 1.Qb5!
      • threat
        • 2.e8Q#
      • 1...Ke5
        • 2.Qe2#
      • 1...Kxe7
        • 2.Qe8#
      • 1...Kxf7
        • 2.e8Q#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);OGATEB,P-FLIGHT,XP(C)::QAR1(E)
        • K(e);S_FLIGHT,XP(D)::P=Q
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(E);
      • Threat
        • P=Q
      • Vars
        • K(e);S_FLIGHT::P=Q
        • K(e);OGATEB,P-FLIGHT,XP(C)::QAR1(E)
        • K(e);S_FLIGHT,XP(D)::P=Q
      • Refutation
        • B(a);
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);S_FLIGHT,XP(D)::P=Q
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • Q(E);
    • Threat
      • P=Q
    • Vars
      • K(e);P-FLIGHT::QAR(E)
      • K(e);OGATEB,P-FLIGHT,XP(C)::QAR1(E)
      • K(e);S_FLIGHT,XP(D)::P=Q
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