MESON Chess Problem Database

Problem Display
PID: 193577 (2R5/3NK1p1/p4p1b/r2k4/b3p1n1/1pP5/6Q1/8 w - - 0 1)

Windle, REL

Pittsburgh Gazette-Times, 1915

2R5/3NK1p1/p4p1b/r2k4/b3p1n1/1pP5/6Q1/8

#2

5 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Rxc5#
    • 1...Bb5
      • 2.Rc5#
    • 1...Bd2
      • 2.Qxd2#
    • 1...Se3
      • 2.Qd2#
    • 1...Se5
      • 2.Sb6#
    • 1...g5
      • 2.Qd2#
  • Tries
    • 1.Qxg4?
      • threat
        • 2.Qf5#
        • 2.Qe6#
      • 1...Rc5
        • 2.Rxc5#
        • 2.Qe6#
      • 1...Bc6
        • 2.Qe6#
      • 1...Bf4
        • 2.Qe6#
      • 1...f5
        • 2.Qxf5#
      • 1...g6
        • 2.Qe6#
      • 1...Bxd7!
  • Keys
    • 1.Qb2!
      • threat
        • 2.c4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Bc6
        • 2.Qxb3#
      • 1...e3
        • 2.Qg2#
      • 1...Bb5
        • 2.Rc5#
      • 1...Se3
        • 2.Qd2#
      • 1...Se5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(e);N_GUARD::R1(E),XR(e)
    • B(b);S_CUTR(e)::R1(E)
    • B(i);N_GUARD::QAR(A),XB(i)
    • S(d);S_CUTB(i)::QAR(A)
    • S(d);SBLOCK::S(C)
    • P(j);S_CUTB(i)::QAR(A)
  • Tries
    • Try
      • Q(A);N_PINP(c),XS(d)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::QAB1(A)
        • B(i);::QAB1(A)
        • P(h);::QAR2(A),XP(h)
        • P(j);::QAB1(A)
      • Refutation
        • B(b);XS(C)
  • Actual
    • Q(A);N_PINP(c)
    • Threat
      • P(B)
    • Vars
      • R(e);N_GUARD::R1(E),XR(e)
      • B(b);N_GUARD::QAB(A),XP(a)
      • P(c);OGATEB::QAB(A)
      • B(b);S_CUTR(e)::R1(E)
      • S(d);S_CUTB(i)::QAR(A)
      • S(d);SBLOCK::S(C)
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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).