MESON Chess Problem Database

Problem Display
PID: 24601 (q3r2b/3B4/8/1pP3R1/r3k1p1/1p4P1/5PK1/1b1Q4 w - - 0 1)

Heathcote, Godfrey

3rd Prize, Viareggio, 1907

q3r2b/3B4/8/1pP3R1/r3k1p1/1p4P1/5PK1/1b1Q4

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Qxd5#
    • 1...Qc6
      • 2.Bxc6#
    • 1...Qa5
      • 2.Bc6#
      • 2.Qd5#
    • 1...Qa6
      • 2.Qd5#
    • 1...Qa7
      • 2.Bc6#
      • 2.Qd5#
    • 1...Qb8
      • 2.Bc6#
      • 2.Qd5#
    • 1...Qc8
      • 2.Qd5#
    • 1...Qd8
      • 2.Qd5#
    • 1...Rd4
      • 2.Qe2#
    • 1...Re5
      • 2.Rxg4#
    • 1...Bd3
      • 2.Qxg4#
    • 1...Bd4
      • 2.Qxb1#
    • 1...Be5
      • 2.Bf5#
  • Tries
    • 1.Bxe8?
      • threat
        • 2.Bg6#
      • 1...Qxe8
        • 2.Qd5#
      • 1...Bd3
        • 2.Qxg4#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qc6
        • 2.Bxc6#
      • 1...Qa6
        • 2.Qd5#
      • 1...Qc8
        • 2.Qd5#
      • 1...Ra6!
    • 1.Qd2?
      • threat
        • 2.Qe3#
      • 1...Re5
        • 2.Rxg4#
      • 1...Be5
        • 2.Bf5#
      • 1...Bd4!
  • Keys
    • 1.c6!
      • threat
        • 2.Qd5#
      • 1...Qxc6
        • 2.Bxc6#
      • 1...Bd3
        • 2.Qxg4#
      • 1...Rd4
        • 2.Qe2#
      • 1...Re5
        • 2.Rxg4#
      • 1...Bd4
        • 2.Qxb1#
      • 1...Be5
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • Q(g);N_GUARD::QAB1(A),XQ(g)
    • Q(g);N_GUARD::B(G),XQ(g)
    • Q(g);N_GUARD::QAB1(A)
    • R(c);SBLOCK::QAR2(A)
    • R(h);SBLOCK::R(F),XP(e)
    • B(a);SBLOCK::QAR2(A),XP(e)
    • B(i);SBLOCK::QAB(A),XB(a)
    • B(i);SBLOCK::B(G)
  • Tries
    • Try
      • B(G);XR(h)
      • Threat
        • B(G)
      • Vars
        • Q(g);N_GUARD,XB(G)::QAB1(A)
        • B(a);SBLOCK::QAR2(A),XP(e)
        • Q(g);N_GUARD::QAB1(A),XQ(g)
        • Q(g);N_GUARD::B(G),XQ(g)
        • Q(g);N_GUARD::QAB1(A)
      • Refutation
        • R(c);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • R(h);SBLOCK::R(F),XP(e)
        • B(i);SBLOCK::B(G)
      • Refutation
        • B(i);
  • Actual
    • P(E);
    • Threat
      • QAB1(A)
    • Vars
      • Q(g);OGATE,XP(E)::B(G),XQ(g)
      • B(a);SBLOCK::QAR2(A),XP(e)
      • R(c);SBLOCK::QAR2(A)
      • R(h);SBLOCK::R(F),XP(e)
      • B(i);SBLOCK::QAB(A),XB(a)
      • B(i);SBLOCK::B(G)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).