MESON Chess Problem Database

Problem Display
PID: 274381 (8/2N1n1rr/3p2Nb/5kn1/7B/1p3B2/1Kb4Q/5R2 w - - 0 1)

Blom, JK

Probleemblad, 1953

8/2N1n1rr/3p2Nb/5kn1/7B/1p3B2/1Kb4Q/5R2

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sf7
      • 2.Sxe7#
  • Keys
    • 1.Qe2!
      • threat
        • 2.Be4#
      • 1...Kf6
        • 2.Qe6#
      • 1...Kxg6
        • 2.Bh5#
      • 1...Rxg6
        • 2.Bg4#
      • 1...Sxf3
        • 2.Qe6#
      • 1...Sxg6
        • 2.Bg4#
      • 1...Be4
        • 2.Bxe4#
      • 1...Se4
        • 2.Bxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(d);S_CUTR(h)::S(F),XS(g)
  • Actual
    • Q(C);
    • Threat
      • R(A)+B(D),DCHECK
    • Vars
      • K(c);P-FLIGHT,P_SPINS(d)::QAR1(C)
      • K(c);S_CUTS(d),S_FLIGHT,XS(F)::B(D)
      • R(h);SBLOCK,XS(F)::R(A)+B(D),DCHECK
      • S(d);N_GUARD,P_SPINS(d),XB(D)::QAB1(C)
      • S(g);SBLOCK,XS(F)::R(A)+B(D),DCHECK
      • B(a);::R(A)+B(D),DCHECK,XB(a)
      • S(d);::R(A)+B(D),DCHECK,XS(d)
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