MESON Chess Problem Database

Problem Display
PID: 150276 (1bN4r/1QB5/4b1p1/2Np3p/2pk1n2/p7/P2PR2K/7B w - - 0 1)

Moon, James Frank

Hampstead and Highgate Express, 1895

(First published on Sat Oct 26 1895)

1bN4r/1QB5/4b1p1/2Np3p/2pk1n2/p7/P2PR2K/7B

#2

9 + 10

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qb6#
    • 1...Sd3
      • 2.Sxe6#
    • 1...c3
      • 2.Qb4#
  • Tries
    • 1.Sxe6+?
      • 1...Sxe6
        • 2.Qxd5#
      • 1...Kd3!
    • 1.Be5+?
      • 1...Kxc5
        • 2.Qb6#
      • 1...Bxe5!
    • 1.Re4+?
      • 1...Kxc5
        • 2.Qb6#
      • 1...dxe4!
    • 1.Qb2+?
      • 1...Kxc5
        • 2.Qb6#
      • 1...c3
        • 2.Qxc3#
        • 2.Qb4#
      • 1...axb2!
    • 1.Qb3?
      • threat
        • 2.Qe3#
      • 1...Kxc5
        • 2.Qb6#
      • 1...Sg2
        • 2.Sxe6#
      • 1...Sd3
        • 2.Sxe6#
      • 1...c3
        • 2.Qxc3#
        • 2.Qb4#
      • 1...cxb3!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qg1#
      • 1...Kxc5
        • 2.Qb6#
      • 1...Sxe2
        • 2.Sxe6#
      • 1...c3
        • 2.Qb4#
      • 1...Sg2
        • 2.Sxe6#
      • 1...Sd3
        • 2.Sxe6#
      • 1...Sh3
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(G)
    • S(d);N_GUARD,P_PINB(H),SBLOCK::S(F),XB(g)
    • P(b);OGATEB::QAR2(G)
  • Tries
    • Try
      • S(F);CHECK,XB(g)
      • Vars
        • S(d);P_PINB(H),XS(F)::QAR1(G),XP(e)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • B(H);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(F)::QAB1(G)
      • Refutation
        • B(i);XB(H)
    • Try
      • R(D);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(F)::QAB1(G)
      • Refutation
        • P(e);XR(D)
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(G)
      • Refutation
        • P(a);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(G)
        • S(d);N_GUARD,P_PINB(H)::S(F),XB(g)
      • Refutation
        • P(b);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(G)
      • S(d);N_GUARD,P_PINB(H),XR(D)::S(F),XB(g)
      • P(b);OGATEB::QAR2(G)
      • S(d);N_GUARD,P_PINB(H)::S(F),XB(g)
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