MESON Chess Problem Database

Problem Display
PID: 9392 (1Qn5/1n1p4/8/r1p3B1/2BkN2p/P6P/3N4/2K5 w - - 0 1)

Heathcote, Godfrey

Hampstead and Highgate Express, 1902

1Qn5/1n1p4/8/r1p3B1/2BkN2p/P6P/3N4/2K5

#2

8 + 7

2794 Terms & Themes of Chess Problems 1907
56 The Problemist 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sbd6
      • 2.Qb2#
    • 1...Sd8
      • 2.Qb2#
    • 1...Sb6
      • 2.Qh8#
    • 1...Scd6
      • 2.Qh8#
    • 1...Sa7
      • 2.Qh8#
    • 1...Se7
      • 2.Qh8#
  • Tries
    • 1.Sb3+?
      • 1...Kxe4
        • 2.Qf4#
      • 1...Kxc4!
    • 1.Sf3+?
      • 1...Kxe4
        • 2.Qf4#
      • 1...Kxc4!
    • 1.Bf4?
      • threat
        • 2.Qe5#
      • 1...Sbd6
        • 2.Qb2#
      • 1...Scd6
        • 2.Qh8#
      • 1...d6!
    • 1.Qg3?
      • threat
        • 2.Be3#
        • 2.Bf6#
        • 2.Qc3#
      • 1...Rxa3
        • 2.Bf6#
      • 1...Ra6
        • 2.Be3#
        • 2.Qc3#
      • 1...hxg3!
    • 1.Qxb7?
      • threat
        • 2.Qd5#
        • 2.Qb2#
      • 1...Ke5
        • 2.Qd5#
      • 1...Rxa3
        • 2.Qd5#
      • 1...Rb5
        • 2.Qd5#
      • 1...Se7
        • 2.Qb2#
      • 1...d5
        • 2.Qxd5#
        • 2.Qb2#
        • 2.Qg7#
      • 1...Sb6!
  • Keys
    • 1.Sd6!
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke5
        • 2.Sf3#
      • 1...Rxa3
        • 2.Sb5#
      • 1...Sbxd6
        • 2.Qb2#
      • 1...Scxd6
        • 2.Qh8#
      • 1...Ra4
        • 2.Sb5#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Ra6
        • 2.Sb5#
      • 1...Ra7
        • 2.Sb5#
      • 1...Ra8
        • 2.Sb5#
      • 1...Sd8
        • 2.Qb2#
      • 1...Sb6
        • 2.Qh8#
      • 1...Sa7
        • 2.Qh8#
      • 1...Se7
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(e);OGATE::QAB(H)
    • S(g);OGATE::QAB(H)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XS(F)::QAR1(H)
      • Refutation
        • K(a);P-FLIGHT,XB(E)
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XS(F)::QAR1(H)
      • Refutation
        • K(a);P-FLIGHT,XB(E)
    • Try
      • B(G);
      • Threat
        • QAB1(H)
      • Vars
        • S(e);OGATE::QAB(H)
        • S(g);OGATE::QAB(H)
      • Refutation
        • P(f);
    • Try
      • Q(H);
      • Threat
        • DUALS(3)
      • Vars
        • R(c);XP(C)::B(G)
      • Refutation
        • P(b);XQ(H)
    • Try
      • Q(H);XS(e)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT::QAR1(H)
        • R(c);XP(C)::QAR1(H)
        • R(c);::QAR1(H)
        • S(g);::QAB(H)
      • Refutation
        • S(g);
  • Actual
    • S(F);
    • Vars
      • K(a);S_FLIGHT::B(G)
      • K(a);S_FLIGHT::S(B)
      • R(c);N_GUARD,XP(C)::S(F)
      • S(e);OGATE,XS(F)::QAB(H)
      • S(g);OGATE,XS(F)::QAB(H)
      • R(c);N_GUARD::S(F)
      • R(c);N_GUARD::S(F),XR(c)
      • S(e);OGATE::QAB(H)
      • S(g);OGATE::QAB(H)
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