MESON Chess Problem Database

Problem Display
PID: 22161 (2R3B1/1pp3b1/1P2N1r1/p2N3r/b1kP4/2P2Q2/4P3/KR6 w - - 0 1)

Haring, Jacobus

3rd Prize, Europe Echecs, 1964

2R3B1/1pp3b1/1P2N1r1/p2N3r/b1kP4/2P2Q2/4P3/KR6

#2

11 + 8

3747 FIDE Album (1962-1964) 1968

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Qd3#
    • 1...Bd1
      • 2.Rxc7#
    • 1...Bc2
      • 2.Rxc7#
    • 1...c5
      • 2.Rxc5#
  • Tries
    • 1.Sexc7?
      • threat
        • 2.Qd3#
      • 1...Rh3
        • 2.Sf6#
      • 1...Rg3
        • 2.Sb5#
      • 1...Bc2
        • 2.Se6#
      • 1...Bxd4!
  • Keys
    • 1.Sdxc7!
      • threat
        • 2.Qd3#
      • 1...Rh3
        • 2.Sb5#
      • 1...Rg3
        • 2.Sg5#
      • 1...Bc2
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(d);SBLOCK,XS(G)::QAB1(E)
    • B(a);N_GUARD::R(J),XP(g)
    • P(g);OGATE::R1(J),XP(g)
  • Tries
    • Try
      • S(I);XP(g)
      • Threat
        • QAB1(E)
      • Vars
        • R(d);N_GUARD::B(K)+S(G)
        • R(e);N_GUARD::R(J)+S(I)
        • B(a);N_GUARD::R(J)+S(I)
      • Refutation
        • B(h);P_PINP(D),XP(F)
  • Actual
    • S(G);XP(g)
    • Threat
      • QAB1(E)
    • Vars
      • R(d);N_GUARD::R(J)+S(G)
      • R(e);N_GUARD::B(K)+S(I)
      • B(a);N_GUARD::R(J)+S(G)
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