MESON Chess Problem Database

Problem Display
PID: 41897 (5K2/8/1b1p4/p1k5/3N4/2p1Q3/3N1B2/8 w - - 0 1)

Dittrich, Frantisek

Ceske listy sachove, 1898

5K2/8/1b1p4/p1k5/3N4/2p1Q3/3N1B2/8

#2

5 + 5

15 British Chess Magazine 1908
3360 Simple Two-move Themes 1924
14868 Pirnie Collection 2012
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qg5#
    • 1...d5
      • 2.Qe7#
  • Tries
    • 1.Qg5+?
      • 1...d5
        • 2.Qe7#
      • 1...Kb4!
    • 1.Qe2?
      • threat
        • 2.Qc4#
        • 2.Qb5#
      • 1...Kd5
        • 2.Qh5#
      • 1...cxd2
        • 2.Qb5#
      • 1...Ba7
        • 2.Qb5#
      • 1...Bc7
        • 2.Qb5#
      • 1...Bd8
        • 2.Qb5#
      • 1...d5
        • 2.Qe7#
      • 1...Kb4!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qb5#
      • 1...Kb4
        • 2.Sc2#
      • 1...Kd5
        • 2.Qh5#
      • 1...d5
        • 2.Qe7#

This anticipates 145122(1906-1907), 102155(1913), 193345(1914)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::QAR(C)
    • P(e);OGATEB,SBLOCK::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • P(e);OGATEB,P_SPINP(e),SBLOCK::QAB(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR(C)
        • P(a);XS(A)::QAR1(C)
        • B(d);::QAR1(C)
        • P(e);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(c);S_FLIGHT::S(D)
      • K(c);P-FLIGHT::QAR(C)
      • P(e);OGATEB,SBLOCK::QAB(C)
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