MESON Chess Problem Database

Problem Display
PID: 155037 (b1N5/1B6/4p3/2Qpk1K1/3p4/6p1/1p6/Rr6 w - - 0 1)

Williams, Philip Hamilton

Devon and Exeter Gazette, 1907

b1N5/1B6/4p3/2Qpk1K1/3p4/6p1/1p6/Rr6

#2

5 + 8

15351 SCPF/BCPS Black Books 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Rxe1#
    • 1...d3
      • 2.Qe3#
  • Tries
    • 1.Bxd5?
      • threat
        • 2.Bc6#
        • 2.Bb7#
        • 2.Bxa8#
        • 2.Qd6#
      • 1...exd5
        • 2.Qe7#
      • 1...Rc1
        • 2.Qd6#
      • 1...Bc6
        • 2.Bxc6#
        • 2.Qd6#
      • 1...Bb7
        • 2.Bc6#
        • 2.Bxb7#
        • 2.Qd6#
      • 1...d3
        • 2.Bc6#
        • 2.Bb7#
        • 2.Bxa8#
      • 1...Bxd5!
    • 1.Qc2?
      • threat
        • 2.Qe2#
      • 1...Re1
        • 2.Rxe1#
      • 1...d3!
    • 1.Qb5?
      • threat
        • 2.Qe2#
      • 1...Ke4
        • 2.Qe2#
      • 1...Re1
        • 2.Rxe1#
      • 1...d3!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qe2#
      • 1...Ke4
        • 2.Qe2#
      • 1...dxc4
        • 2.Ra5#
      • 1...Re1
        • 2.Rxe1#
      • 1...d3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE::R(A),XR(a)
    • P(d);OGATE::QAR2(B)
  • Tries
    • Try
      • B(D);XP(e)
      • Threat
        • DUALS(4)
      • Vars
        • P(g);OGATEB,P_SPINP(g),SBLOCK,XB(D)::QAR2(B)
        • R(a);::QAB1(B)
      • Refutation
        • B(h);P_SPINB(h),XB(D)
    • Try
      • Q(B);N_PINP(e)
      • Threat
        • QAR(B)
      • Vars
        • R(a);OGATE::R(A),XR(a)
      • Refutation
        • P(d);
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(f);P-FLIGHT::QAR2(B)
        • R(a);OGATE::R(A),XR(a)
      • Refutation
        • P(d);
  • Actual
    • Q(B);N_PINP(e)
    • Threat
      • QAR(B)
    • Vars
      • K(f);P-FLIGHT,P_SPINP(d)::QAR2(B)
      • P(e);OGATEB,XQ(B)::R(A)
      • R(a);OGATE::R(A),XR(a)
      • P(d);OGATE::QAB1(B)
HTML5 logo

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).