MESON Chess Problem Database

Problem Display
PID: 59098 (3n4/8/Q2Rn3/b2N1R2/2Nk1pK1/PP3rp1/2P2P2/q3r2b w - - 0 1)

Haring, Jacobus

2nd Prize, Tidskrift for Schack, 1965

3n4/8/Q2Rn3/b2N1R2/2Nk1pK1/PP3rp1/2P2P2/q3r2b

#2

10 + 10

3772 FIDE Album (1965-1967) 1976

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Sf6#
    • 1...Bc3
      • 2.Sf6#
  • Tries
    • 1.Sb2?
      • threat
        • 2.Qc4#
      • 1...Ke4
        • 2.Sf6#
      • 1...Kc5
        • 2.Se3#
      • 1...Rc3!
    • 1.Sde3+?
      • 1...Kc3
        • 2.Rd3#
        • 2.Qxa5#
      • 1...Ke4!
    • 1.Sb4+?
      • 1...Ke4
        • 2.Sd2#
      • 1...Kc3!
  • Keys
    • 1.Sce3!
      • threat
        • 2.Qc4#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kc5
        • 2.Sc3#
      • 1...Qc3
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(a);SBLOCK::R(J)+S(G)
    • B(h);SBLOCK::R(J)+S(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(I)
      • Vars
        • K(f);P-FLIGHT::S(G)
        • K(f);S_FLIGHT::R(H)+S(G)
      • Refutation
        • R(d);
    • Try
      • S(G);CHECK
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • K(f);P-FLIGHT::S(E)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • QAR1(I)
    • Vars
      • K(f);P-FLIGHT::QAB1(I)
      • K(f);S_FLIGHT::R(H)+S(G)
      • Q(a);SBLOCK::R(J)+S(G)
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