MESON Chess Problem Database

Problem Display
PID: 17975 (5B2/4nN2/2b4Q/1p4rr/1P1kBp2/2R1n3/3P1N2/2K1R3 w - - 0 1)

le Grand, Henk

le Grand, Piet

Probleemblad, 1952

5B2/4nN2/2b4Q/1p4rr/1P1kBp2/2R1n3/3P1N2/2K1R3

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qb6#
    • 1...Sc4
      • 2.Rd3#
    • 1...S3f5
      • 2.Qf6#
    • 1...Sd5
      • 2.Bc5#
    • 1...S7f5
      • 2.Bc5#
      • 2.Qf6#
  • Tries
    • 1.Qd6+?
      • 1...Bd5
        • 2.Qc5#
        • 2.Qb6#
      • 1...S3d5
        • 2.Qc5#
      • 1...S7d5
        • 2.Qc5#
      • 1...Rd5!
  • Keys
    • 1.Bd5!
      • threat
        • 2.Rd3#
      • 1...Kxd5
        • 2.Qd6#
      • 1...Rxd5
        • 2.Qxf4#
      • 1...Bxd5
        • 2.Qb6#
      • 1...S3xd5
        • 2.Re4#
      • 1...S7xd5
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(g);OGATE::QAB(H)
    • S(a);SBLOCK::R1(E)
    • S(a);S_CUTR(e)::QAB(H)
    • S(h);OGATE::B(J)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • S(a);P_SPINS(a),S_CUTR(e)::QAB1(H)
        • S(h);P_SPINS(h),S_CUTR(e)::QAB1(H)
      • Refutation
        • R(e);P_SPINR(e)
  • Actual
    • B(G);
    • Threat
      • R1(E)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XB(G)::QAR1(H)
      • R(e);OGATE,SBLOCK,XB(G)::QAR2(H),XP(c)
      • B(g);OGATE,SBLOCK,XB(G)::QAB(H)
      • S(a);OGATE,SBLOCK,XB(G)::R1(B)
      • S(h);OGATE,SBLOCK,XB(G)::B(J)
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Developed and maintained by Brian Stephenson.
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