MESON Chess Problem Database

Problem Display
PID: 154287 (1N5Q/2p1R3/3pn3/3k1p2/P1np1B2/3N4/2R1P2b/K7 w - - 0 1)

Markwick, Frederick W

Brighton Guardian, 1881

1N5Q/2p1R3/3pn3/3k1p2/P1np1B2/3N4/2R1P2b/K7

#2

9 + 8

15351 SCPF/BCPS Black Books 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qh1#
    • 1...Bg3
      • 2.Qh1#
    • 1...Bxf4
      • 2.Qh1#
    • 1...Sc5
      • 2.Sb4#
  • Tries
    • 1.Qg8?
      • threat
        • 2.Qxe6#
        • 2.Qg2#
      • 1...Ke4
        • 2.Qg2#
      • 1...Bg3
        • 2.Qxe6#
      • 1...Sd2
        • 2.Qxe6#
      • 1...Se3
        • 2.Qxe6#
      • 1...Se5!
  • Keys
    • 1.Sd7!
      • 1...Ke4
        • 2.Sf6#
      • 1...Kc6
        • 2.Qa8#
      • 1...Bxf4
        • 2.Qh1#
      • 1...Sxf4
        • 2.Sb4#
      • 1...Bg1
        • 2.Qh1#
      • 1...Bg3
        • 2.Qh1#
      • 1...Sb2
        • 2.Sf6#
      • 1...Sd2
        • 2.Sf6#
      • 1...Sa3
        • 2.Sf6#
      • 1...Se3
        • 2.Sf6#
      • 1...Sa5
        • 2.Sf6#
      • 1...Se5
        • 2.Sf6#
      • 1...Sb6
        • 2.Sf6#
      • 1...Sc5
        • 2.Sb4#
      • 1...Sg5
        • 2.Sb4#
      • 1...Sg7
        • 2.Sb4#
      • 1...Sd8
        • 2.Sb4#
      • 1...Sf8
        • 2.Sb4#
      • 1...c5
        • 2.Qa8#
      • 1...c6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::QAB(I)
    • B(a);OGATE,XB(F)::QAB(I)
    • S(g);SBLOCK::S(D)
  • Tries
    • Try
      • Q(I);P_PINS(g)
      • Threat
        • DUALS(2)
      • Vars
        • K(d);S_FLIGHT::QAB(I)
        • B(a);::QAB1(I),XS(g)
        • S(b);::QAB1(I),XS(g)
      • Refutation
        • S(b);
  • Actual
    • S(H);
    • Vars
      • K(d);P_SPINS(g),S_FLIGHT::S(H)
      • K(d);P_SPINS(b),S_FLIGHT::QAB(I)
      • B(a);OGATE,XB(F)::QAB(I)
      • S(g);XB(F)::S(D)
      • B(a);OGATE::QAB(I)
      • S(b);::S(H)
      • S(g);::S(D)
      • P(h);N_GUARD::QAB(I)
      • P(h);SBLOCK::S(H)
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