MESON Chess Problem Database

Problem Display
PID: 244989 (k1N4q/7b/N1p1n1p1/1Rp1b3/6K1/8/8/5Q2 w - - 0 1)

Grabowski, Kazimierz

Tidskrift for Schack, 1917

k1N4q/7b/N1p1n1p1/1Rp1b3/6K1/8/8/5Q2

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Rb8#
    • 1...Bb2
      • 2.Rb8#
    • 1...Bc3
      • 2.Rb8#
    • 1...Bd4
      • 2.Rb8#
    • 1...Bf6
      • 2.Rb8#
    • 1...Bg7
      • 2.Rb8#
    • 1...Bb8
      • 2.Rxb8#
    • 1...Sc7
      • 2.Rb8#
    • 1...cxb5
      • 2.Qg2#
      • 2.Qh1#
      • 2.Qf3#
  • Keys
    • 1.Qa1!
      • threat
        • 2.Sc7#
      • 1...Bxa1
        • 2.Rb8#
      • 1...cxb5
        • 2.Qh1#
      • 1...Bc7
        • 2.Sxc7#
      • 1...Sc7
        • 2.Sxc7#
        • 2.Rb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • B(b);N_GUARD::R1(C)
    • B(b);N_GUARD::R1(C),XB(b)
    • S(d);S_CUTB(b)::R1(C)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+S(D),DCHECK
    • Vars
      • B(b);N_GUARD,XQ(A)::R1(C)
      • P(c);OGATEB,XR(C)::QAB(A)
      • B(b);::QAR(A)+S(D),DCHECK,XB(b)
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