MESON Chess Problem Database

Problem Display
PID: 71193 (8/8/8/8/5p2/P3pP2/kpB1K3/1R2Q3 w - - 0 1)

Williams, Philip Hamilton

Jamaica Leader, 1904

8/8/8/8/5p2/P3pP2/kpB1K3/1R2Q3

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa3
      • 2.Qa5#
  • Tries
    • 1.Kd1?
      • 1...Kxa3
        • 2.Qa5#
      • 1...e2+!
    • 1.Kf1?
      • 1...Kxa3
        • 2.Qa5#
      • 1...e2+!
    • 1.Kd3?
      • 1...Kxa3
        • 2.Qa5#
      • 1...e2!
    • 1.Rxb2+?
      • 1...Kxa3
        • 2.Qc3#
        • 2.Qb4#
        • 2.Qa1#
      • 1...Kxb2!
    • 1.Qd2?
      • 1...Kxa3
        • 2.Qa5#
      • 1...exd2!
  • Keys
    • 1.Bd1!
      • 1...Kxb1
        • 2.Bb3#
      • 1...Kxa3
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(B)
      • Refutation
        • P(c);CHECK
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(B)
      • Refutation
        • P(c);CHECK
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(B)
      • Refutation
        • P(c);
    • Try
      • R(A);CHECK,XP(b)
      • Refutation
        • K(a);P-FLIGHT,XR(A)
    • Try
      • Q(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(B)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT,XR(A)::QAR(B)+B(C)
      • K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(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).