MESON Chess Problem Database

Problem Display
PID: 258875 (1Nb4b/1p6/3p2Q1/1n2kp2/4P2R/2P3P1/6N1/K3R3 w - - 0 1)

Nield, Joshua

Manchester Weekly Times, 1893

(First published on Fri Aug 18 1893)

1Nb4b/1p6/3p2Q1/1n2kp2/4P2R/2P3P1/6N1/K3R3

#2

9 + 7

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd7
      • 2.Sxd7#
    • 1...f4
      • 2.gxf4#
    • 1...d5
      • 2.exf5#
    • 1...b6
      • 2.Sc6#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Sd3#
        • 2.exf5#
      • 1...fxe4
        • 2.Rxe4#
      • 1...Bf6
        • 2.exf5#
      • 1...Sd4
        • 2.Sd3#
      • 1...Sxc3!
    • 1.Qe8+?
      • 1...Be6
        • 2.Sd7#
        • 2.Qxh8#
      • 1...Kf6!
    • 1.Qg7+?
      • 1...Ke6
        • 2.Sf4#
        • 2.Rh6#
      • 1...Bxg7!
  • Keys
    • 1.Rh6!
      • 1...Sxc3
        • 2.Qxd6#
      • 1...fxe4
        • 2.Qxe4#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Be6
        • 2.Qxe6#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Bg7
        • 2.Qxg7#
      • 1...Sa3
        • 2.Qxd6#
      • 1...Sd4
        • 2.Qxd6#
      • 1...Sa7
        • 2.Qxd6#
      • 1...Sc7
        • 2.Qxd6#
      • 1...f4
        • 2.gxf4#
      • 1...d5
        • 2.exf5#
      • 1...b6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD::S(I),XB(f)
    • P(c);OGATE::P(E),XP(c)
    • P(d);SBLOCK::R(B)+P(F),XP(c)
    • P(e);N_GUARD::S(I)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);OGATE,P_SPINP(c),XP(F)::R1(B),XP(c)
        • B(g);::R(B)+P(F),XP(c)
        • S(a);::S(C)
      • Refutation
        • S(a);XP(D)
    • Try
      • Q(H);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • B(g);XQ(H)
  • Actual
    • R(G);
    • Vars
      • S(a);N_GUARD,XP(D)::QAB1(H),XP(d)
      • P(c);OGATE,P_SPINP(c),XP(F)::QAR1(H),XP(c)
      • B(g);N_GUARD::QAB1(H),XB(g)
      • B(f);N_GUARD::QAR1(H),XB(f)
      • B(f);N_GUARD::S(I),XB(f)
      • B(g);N_GUARD::QAB(H),XB(g)
      • S(a);N_GUARD::QAB1(H),XP(d)
      • P(c);OGATE::P(E),XP(c)
      • P(d);SBLOCK::R(B)+P(F),XP(c)
      • P(e);N_GUARD::S(I)
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