MESON Chess Problem Database

Problem Display
PID: 140582 (8/2Br4/Q7/1R3r2/4kp2/1PP2R2/3P1P2/5K2 w - - 0 1)

Basman, Michael J

Evening News, 1961

(First published on Wed Apr 12 1961)

8/2Br4/Q7/1R3r2/4kp2/1PP2R2/3P1P2/5K2

#2

9 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Rb4+?
      • 1...Kxf3
        • 2.Qe2#
      • 1...Kd5
        • 2.Qc4#
      • 1...Rd4!
    • 1.Re5+?
      • 1...Kxf3
        • 2.Qe2#
      • 1...Rxe5!
    • 1.Rxf5?
      • threat
        • 2.R3xf4#
      • 1...Kxf3
        • 2.Rxf4#
        • 2.Qe2#
      • 1...Kxf5!
    • 1.Qe6+?
      • 1...Kxf3
        • 2.Qe2#
      • 1...Re5!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Qd3#
      • 1...Kxf3
        • 2.Qe2#
      • 1...Kxd5
        • 2.Qc4#
      • 1...Rfxd5
        • 2.Rxf4#
      • 1...Rdxd5
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(F)::QAB1(H)
        • K(a);S_FLIGHT::QAB1(H)
      • Refutation
        • R(d);P_SPINR(d)
    • Try
      • R(G);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(F)::QAB1(H)
      • Refutation
        • R(c);XR(G)
    • Try
      • R(G);XR(c)
      • Threat
        • R1(F),XP(b)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XR(G)
    • Try
      • Q(H);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(F)::QAB1(H)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • R(G);
    • Threat
      • QAB1(H)
    • Vars
      • K(a);S_FLIGHT,XR(F)::QAB1(H)
      • K(a);S_FLIGHT,XR(G)::QAB1(H)
      • R(c);N_GUARD,SBLOCK,XR(G)::R1(F),XP(b)
      • R(d);SBLOCK,XR(G)::QAR2(H)
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).