MESON Chess Problem Database

Problem Display
PID: 9822 (7B/2nnb2b/8/4p2B/1r2k3/1P1R1RpN/2p5/Q1K5 w - - 0 1)

Gamage, Frederick

1st Prize, Pittsburgh Leader, 1910

7B/2nnb2b/8/4p2B/1r2k3/1P1R1RpN/2p5/Q1K5

#2

8 + 9

145 StrateGems 1998
5424 Versunkene Schatze 1998
5397 Frederick Gamage (Prcic) 2004
133 The Problemist Supplement 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Sg5#
    • 1...Bg5+
      • 2.Sxg5#
    • 1...Bd6
      • 2.Sg5#
    • 1...Bf8
      • 2.Sg5#
    • 1...Bf5
      • 2.Rfe3#
    • 1...Bg6
      • 2.Bxg6#
    • 1...Bg8
      • 2.Bg6#
    • 1...Sb5
      • 2.Qa8#
    • 1...Sc5
      • 2.Qxe5#
    • 1...Sb6
      • 2.Qxe5#
    • 1...Sf6
      • 2.Sg5#
    • 1...Sb8
      • 2.Qxe5#
    • 1...Sf8
      • 2.Qxe5#
    • 1...g2
      • 2.Sf2#
  • Keys
    • 1.Qa5!
      • 1...Bg5+
        • 2.Sxg5#
      • 1...Rxb3
        • 2.Qe1#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Ra4
        • 2.Qe1#
      • 1...Rc4
        • 2.Qe1#
      • 1...Rd4
        • 2.Rde3#
      • 1...Rb5
        • 2.Qe1#
      • 1...Rb6
        • 2.Qe1#
      • 1...Rb7
        • 2.Qe1#
      • 1...Rb8
        • 2.Qe1#
      • 1...Bh4
        • 2.Qxb4#
      • 1...Bc5
        • 2.Sg5#
      • 1...Bd6
        • 2.Sg5#
      • 1...Bf6
        • 2.Qxb4#
      • 1...Bd8
        • 2.Qxb4#
      • 1...Bf8
        • 2.Sg5#
      • 1...Bf5
        • 2.Rfe3#
      • 1...Bg6
        • 2.Bxg6#
      • 1...Bg8
        • 2.Bg6#
      • 1...Sb5
        • 2.Qa8#
      • 1...Sa6
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sa8
        • 2.Qd5#
      • 1...Se8
        • 2.Qd5#
      • 1...Sc5
        • 2.Qxb4#
      • 1...Sb6
        • 2.Qxe5#
      • 1...Sf6
        • 2.Sg5#
      • 1...Sb8
        • 2.Qxe5#
      • 1...Sf8
        • 2.Qxe5#
      • 1...g2
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • B(h);N_GUARD::S(F)
    • B(h);CHECK,N_GUARD::S(F),XB(h)
    • B(i);SBLOCK::R1(E)
    • B(i);N_GUARD::B(G),XB(i)
    • B(i);N_GUARD::B(G)
    • S(f);N_GUARD,S_CUTR(c)::QAB(A)
    • S(g);N_GUARD::QAR1(A),XP(e)
    • S(g);S_CUTB(h)::S(F)
    • P(b);N_GUARD::S(F)
  • Actual
    • Q(A);
    • Vars
      • B(h);CHECK,N_GUARD::S(F),XB(h)
      • R(c);OGATE,XP(C)::QAR(A)
      • S(f);N_GUARD::QAB1(A),XS(f)
      • R(c);OGATE::QAR(A)
      • R(c);SBLOCK::R1(D)
      • B(h);N_GUARD::QAR(A),XR(c)
      • B(h);N_GUARD::S(F)
      • B(i);SBLOCK::R1(E)
      • B(i);N_GUARD::B(G),XB(i)
      • B(i);N_GUARD::B(G)
      • S(f);N_GUARD,S_CUTR(c)::QAB(A)
      • S(f);N_GUARD::QAB1(A)
      • S(g);S_CUTB(h)::QAR(A),XR(c)
      • S(g);N_GUARD::QAR1(A),XP(e)
      • S(g);S_CUTB(h)::S(F)
      • P(b);N_GUARD::S(F)
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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).