MESON Chess Problem Database

Problem Display
PID: 2550 (1N6/5p2/2Bp1P2/3b3Q/pn1k1BP1/P1R2p2/2PN1p2/5K2 w - - 0 1)

St Maurice, Ephrem

Source?, 0000

1N6/5p2/2Bp1P2/3b3Q/pn1k1BP1/P1R2p2/2PN1p2/5K2

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4+
      • 2.Rxc4#
    • 1...Be4
      • 2.Rc4#
    • 1...Bxc6
      • 2.Rc4#
  • Tries
    • 1.Rd3+?
      • 1...Kc5
        • 2.Be3#
      • 1...Sxd3!
    • 1.Qxd5+?
      • 1...Sxd5
        • 2.Rc4#
      • 1...Kxc3!
    • 1.axb4?
      • threat
        • 2.Rd3#
      • 1...Bc4+
        • 2.Rxc4#
      • 1...Be4
        • 2.Rc4#
      • 1...Kxc3!
  • Keys
    • 1.Rc5!
      • 1...Bc4+
        • 2.Rxc4#
      • 1...Kxc5
        • 2.Be3#
      • 1...Bxc6
        • 2.Rc4#
      • 1...Sxc2
        • 2.Qxd5#
      • 1...Sxc6
        • 2.Qxd5#
      • 1...dxc5
        • 2.Qe5#
      • 1...Ba2
        • 2.Sxf3#
      • 1...Bb3
        • 2.Sxf3#
      • 1...Be4
        • 2.Rc4#
      • 1...Be6
        • 2.Sxf3#
      • 1...Sa2
        • 2.Qxd5#
      • 1...Sd3
        • 2.Qxd5#
      • 1...Sa6
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(f);CHECK,N_GUARD::R1(E),XB(f)
    • B(f);N_GUARD::R1(E)
    • B(f);N_GUARD,XB(I)::R1(E)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(e);P_SPINB(f),S_FLIGHT::B(F)
      • Refutation
        • S(d);XR(E)
    • Try
      • Q(H);CHECK,XB(f)
      • Vars
        • S(d);XQ(H)::R1(E)
      • Refutation
        • K(e);S_FLIGHT,XR(E)
    • Try
      • P(D);XS(d)
      • Threat
        • R1(E)
      • Vars
        • B(f);CHECK,N_GUARD::R1(E),XB(f)
        • B(f);N_GUARD::R1(E)
      • Refutation
        • K(e);S_FLIGHT,XR(E)
  • Actual
    • R(E);
    • Vars
      • B(f);CHECK,N_GUARD::R1(E),XB(f)
      • K(e);P_SPINB(f),S_FLIGHT,XR(E)::B(F)
      • B(f);N_GUARD,XB(I)::R1(E)
      • S(d);N_GUARD,XP(B)::QAR1(H),XB(f)
      • S(d);N_GUARD,XB(I)::QAR1(H),XB(f)
      • P(g);N_GUARD,SBLOCK,XR(E)::QAB1(H)
      • B(f);N_GUARD::S(C),XP(b)
      • B(f);N_GUARD::R1(E)
      • S(d);N_GUARD::QAR1(H),XB(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).