MESON Chess Problem Database

Problem Display
PID: 245095 (KNn5/8/1p3r2/1pk3r1/3R2bQ/8/B2PpB2/8 w - - 0 1)

Haring, Jacobus

De Maasbode, 1946

KNn5/8/1p3r2/1pk3r1/3R2bQ/8/B2PpB2/8

#2

7 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Sa6#
    • 1...Bf3+
      • 2.Rd5#
    • 1...Bh3
      • 2.Rd5#
    • 1...Bf5
      • 2.Rd3#
      • 2.Rd5#
      • 2.Rd7#
      • 2.Rd8#
    • 1...Bh5
      • 2.Rd5#
    • 1...Be6
      • 2.Rd5#
    • 1...Bd7
      • 2.Rd5#
    • 1...Sd6
      • 2.Rf4#
    • 1...b4
      • 2.Rd5#
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qc3#
      • 1...Bf3+
        • 2.Re4#
      • 1...b4
        • 2.Rd5#
      • 1...Rd5
        • 2.Rc4#
      • 1...Rf3
        • 2.Qc7#
      • 1...Be6
        • 2.Qc7#
      • 1...Sd6
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(g);SBLOCK::S(G)
    • B(b);CHECK::B(C)+R(D),DCHECK
    • B(b);::B(C)+R(D),DCHECK
    • S(h);SBLOCK::B(C)+R(D)
    • P(c);SBLOCK::B(C)+R(D),DCHECK
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • B(b);CHECK,S_CUTR(g)::B(C)+R(D)
      • P(c);SBLOCK::B(C)+R(D),DCHECK
      • R(e);SBLOCK::B(C)+R(D),DCHECK
      • R(g);N_GUARD::QAR2(E)
      • B(b);S_CUTR(g)::QAR2(E)
      • S(h);SBLOCK::B(C)+R(D)
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Developed and maintained by Brian Stephenson.
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