MESON Chess Problem Database

Problem Display
PID: 4959 (2K5/7p/p1kp4/5P2/P1p5/n2P4/3Q4/6B1 w - - 0 1)

Pospisil, Josef

Deutsche Schachzeitung, 1895

2K5/7p/p1kp4/5P2/P1p5/n2P4/3Q4/6B1

#2

6 + 6

1750 Ceske listy sachove 1896
15 British Chess Magazine 1908
3804 Ceske Melodie 1908
3360 Simple Two-move Themes 1924
5501 Chess Cameos 1936

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qh6#
  • Tries
    • 1.Qb4?
      • threat
        • 2.Qb7#
      • 1...Sb5
        • 2.Qxc4#
      • 1...d5
        • 2.Qc5#
        • 2.Qb6#
      • 1...Kd5!
    • 1.dxc4?
      • threat
        • 2.Qd5#
      • 1...d5
        • 2.Qh6#
        • 2.Qxd5#
      • 1...Sxc4!
  • Keys
    • 1.d4!
      • threat
        • 2.d5#
      • 1...Kd5
        • 2.Qg2#
      • 1...Kb6
        • 2.d5#
      • 1...d5
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATEB,SBLOCK::QAR(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • S(a);N_GUARD::QAR2(B),XP(b)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • P(C);XP(b)
      • Threat
        • QAB1(B)
      • Refutation
        • S(a);XP(C)
  • Actual
    • P(C);
    • Threat
      • P(C)
    • Vars
      • K(d);S_FLIGHT::QAB(B)
      • K(d);P-FLIGHT::B(A)+P(C)
      • P(e);OGATEB,SBLOCK::QAR(B)
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