MESON Chess Problem Database

Problem Display
PID: 16431 (8/8/1K6/1Qp5/P1P1N3/B4N2/pnk1B2R/bbr2R2 w - - 0 1)

Nanning, Frederik Willem

Limburgs Dagblad, 1940

8/8/1K6/1Qp5/P1P1N3/B4N2/pnk1B2R/bbr2R2

#2

10 + 7

742 Problem (Zagreb) 1951

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Se1#
    • 1...Sd3
      • 2.Bd1#
    • 1...Sxa4+
      • 2.Qxa4#
    • 1...Sxc4+
      • 2.Bxc4#
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qc3#
      • 1...Sxa4+
        • 2.Qxa4#
      • 1...Sxc4+
        • 2.Bxc4#
      • 1...cxb4
        • 2.Sd4#
      • 1...Sd1
        • 2.Se1#
      • 1...Sd3
        • 2.Bd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(e);S_CUTR(c)::S(E)
    • S(e);SBLOCK::R(C)+B(B),DCHECK
    • S(e);CHECK,OGATE,XP(F)::QAB(I),XS(e)
    • S(e);CHECK,OGATE,XP(G)::R(C)+B(B),XS(e)
  • Actual
    • Q(I);
    • Threat
      • QAR1(I)
    • Vars
      • S(e);CHECK,OGATE,XP(F)::QAB(I),XS(e)
      • S(e);CHECK,OGATE,XP(G)::R(C)+B(B),XS(e)
      • P(g);N_GUARD,XQ(I)::S(E)
      • S(e);S_CUTR(c)::S(E)
      • S(e);SBLOCK::R(C)+B(B),DCHECK
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