MESON Chess Problem Database

Problem Display
PID: 19064 (8/7n/1R6/4k3/2pp3N/2q2p2/3QPN1K/8 w - - 0 1)

Havel, Miroslav

Besedy lidu, 1912

8/7n/1R6/4k3/2pp3N/2q2p2/3QPN1K/8

#2

6 + 6

6024 Bohemian Garnets 1923
4312 Ceske Granaty 1975

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Qxg5#
    • 1...Sf6
      • 2.Qg5#
    • 1...Sf8
      • 2.Qg5#
  • Tries
    • 1.Sg6+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kd5!
    • 1.Qf4+?
      • 1...Kd5
        • 2.Qd6#
        • 2.Qf5#
      • 1...Kxf4!
  • Keys
    • 1.e4!
      • threat
        • 2.Sg6#
      • 1...dxe4 ep
        • 2.Qd6#
      • 1...d3
        • 2.Sxf3#
      • 1...Sf8
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD::QAR2(A),XS(f)
    • S(f);N_GUARD::QAR2(A)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(A)
      • Refutation
        • K(e);P-FLIGHT,P_SPINP(d)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(e);S_FLIGHT,XQ(A)
  • Actual
    • P(B);
    • Threat
      • S(E)
    • Vars
      • P(d);EP,OGATE,XP(B)::QAB1(A)
      • P(d);S_CUTQ(a)::S(E),XP(b)
      • S(f);N_GUARD::QAR2(A)
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