MESON Chess Problem Database

Problem Display
PID: 104570 (2R5/8/B3kpN1/2P5/3P4/5KN1/5PQ1/8 w - - 0 1)

Riczu, Lajos

Canadian Chess Chat, 1980

2R5/8/B3kpN1/2P5/3P4/5KN1/5PQ1/8

#2

9 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qh3+?
      • 1...Kd5
        • 2.Qd7#
      • 1...f5
        • 2.Qxf5#
      • 1...Kf7!
  • Keys
    • 1.Sf5!
      • 1...Kd5
        • 2.Sf4#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Kd7
        • 2.Sf8#
      • 1...Kf7
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(B)
        • P(b);P_SPINP(b)::QAB1(B),XP(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::S(H)
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • K(a);S_FLIGHT::B(G)
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