MESON Chess Problem Database

Problem Display
PID: 145811 (8/8/6N1/2p1Q1p1/2Rp2P1/2P2k1p/3K3R/8 w - - 0 1)

Bridgwater, Ralph Herbert

Chess Amateur (The), 1925

8/8/6N1/2p1Q1p1/2Rp2P1/2P2k1p/3K3R/8

#2

7 + 5

15372 Bridgwater Scrapbook 2012

SOLUTION

  • SOUND
  • Sets
    • 1...dxc3+
      • 2.Qxc3#
    • 1...d3
      • 2.Qe3#
  • Tries
    • 1.Ke1?
      • 1...dxc3
        • 2.Rf2#
        • 2.Qxc3#
      • 1...d3
        • 2.Rf2#
      • 1...Kxg4!
    • 1.Kd3?
      • 1...dxc3
        • 2.Qe3#
      • 1...Kxg4!
    • 1.Se7?
      • 1...dxc3+
        • 2.Qxc3#
      • 1...d3
        • 2.Qe3#
      • 1...Kxg4!
    • 1.Sf8?
      • 1...dxc3+
        • 2.Qxc3#
      • 1...d3
        • 2.Qe3#
      • 1...Kxg4!
    • 1.Sh8?
      • 1...dxc3+
        • 2.Qxc3#
      • 1...d3
        • 2.Qe3#
      • 1...Kxg4!
    • 1.Qxd4?
      • threat
        • 2.Qf2#
        • 2.Qe3#
        • 2.Qd3#
      • 1...Kg3
        • 2.Qf2#
      • 1...cxd4!
    • 1.Qe3+?
      • 1...Kxg4
        • 2.Qxh3#
      • 1...dxe3+!
    • 1.Qxg5?
      • threat
        • 2.Qf4#
      • 1...Kg3
        • 2.Qf4#
      • 1...Ke4
        • 2.Qf5#
      • 1...dxc3+!
    • 1.Qe6?
      • 1...dxc3+
        • 2.Rxc3#
      • 1...d3
        • 2.Qe3#
      • 1...Kg3!
  • Keys
    • 1.Qh8!
      • 1...dxc3+
        • 2.Qxc3#
      • 1...Kg3
        • 2.Qxh3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxg4
        • 2.Qxh3#
      • 1...d3
        • 2.Qxh3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);CHECK,OGATE,XP(C)::QAR(F),XP(c)
    • P(c);N_GUARD::QAR1(F)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(c);::R1(B)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XP(E)
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(c);N_GUARD,XP(C)::QAR1(F)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XP(E)
    • Try
      • S(G);
      • Vars
        • P(c);CHECK,OGATE,XP(C)::QAR(F),XP(c)
        • P(c);N_GUARD::QAR1(F)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XP(E)
    • Try
      • S(G);
      • Vars
        • P(c);CHECK,OGATE,XP(C)::QAR(F),XP(c)
        • P(c);N_GUARD::QAR1(F)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XP(E)
    • Try
      • S(G);
      • Vars
        • P(c);CHECK,OGATE,XP(C)::QAR(F),XP(c)
        • P(c);N_GUARD::QAR1(F)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XP(E)
    • Try
      • Q(F);XP(c)
      • Threat
        • DUALS(3)
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
      • Refutation
        • P(d);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,P_SPINP(c),S_FLIGHT,XP(E)::QAB1(F),XP(b)
      • Refutation
        • P(c);CHECK,XQ(F)
    • Try
      • Q(F);XP(e)
      • Threat
        • QAR1(F)
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
        • K(a);P_SPINP(c),S_FLIGHT::QAB1(F)
      • Refutation
        • P(c);CHECK,XP(C)
    • Try
      • Q(F);
      • Vars
        • P(c);CHECK,OGATE,XP(C)::R(D),XP(c)
        • P(c);N_GUARD::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(F);
    • Vars
      • P(c);CHECK,OGATE,XP(C)::QAR(F),XP(c)
      • K(a);P-FLIGHT::QAR1(F),XP(b)
      • K(a);P_SPINP(c),S_FLIGHT::QAB(F)
      • K(a);P_SPINP(c),S_FLIGHT,XP(E)::QAB1(F),XP(b)
      • P(c);::QAR2(F),XP(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).