MESON Chess Problem Database

Problem Display
PID: 72408 (5B2/8/3RP3/3Nk3/R3n3/7Q/7K/1b6 w - - 0 1)

ten Cate, Pieter

2nd HM., Krelenbaum MT, 1949

5B2/8/3RP3/3Nk3/R3n3/7Q/7K/1b6

#2

7 + 3

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Tries
    • 1.Qh8+?
      • 1...Sf6
        • 2.Qxf6#
      • 1...Kf5!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qf5#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kf6
        • 2.Qf5#
      • 1...Sxd6
        • 2.Bg7#
      • 1...Sd2
        • 2.Qh8#
      • 1...Sf2
        • 2.Qh8#
      • 1...Sc3
        • 2.Qh8#
      • 1...Sg3
        • 2.Qh8#
      • 1...Sc5
        • 2.Qh8#
      • 1...Sg5
        • 2.Qh8#
      • 1...Sf6
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(B),XS(b)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT::QAB1(B)
      • K(c);S_FLIGHT::QAR1(B)
      • S(b);N_GUARD,SBLOCK,XR(E)::B(G)
      • S(b);N_GUARD::QAB(B)
      • S(b);N_GUARD,SBLOCK::QAB(B)
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