MESON Chess Problem Database

Problem Display
PID: 19071 (2Q5/kp6/8/PK6/8/8/8/8 w - - 0 1)

Ognjanovic, Z

Dom i Svet, 1912

2Q5/kp6/8/PK6/8/8/8/8

#2

3 + 2

273 Mat Plus 1995
3713 Snap 2001
4883 Still More Fun with Chess Miniatures 2002
5454 Near Snap 2008

SOLUTION

  • SOUND
  • Sets
    • 1...b6
      • 2.axb6#
  • Tries
    • 1.a6?
      • threat
        • 2.Qxb7#
      • 1...b6
        • 2.Qb7#
      • 1...bxa6+!
  • Keys
    • 1.Kc5!
      • 1...b6+
        • 2.axb6#
      • 1...Ka6
        • 2.Qa8#
      • 1...b5
        • 2.axb5 ep#

Anticipated by 46960(1903)

This anticipates 3164(1941), 23708(1964)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::P(A),XP(b)
  • Tries
    • Try
      • P(A);
      • Threat
        • QAR1(C),XP(b)
      • Vars
        • P(b);::QAR1(C)
      • Refutation
        • P(b);CHECK,XP(A)
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • P(b);CHECK,OGATE::P(A),XP(b)
      • K(a);P-FLIGHT,P_SPINP(b)::QAR2(C)
      • P(b);OGATE::P(A),XP(b),EP
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