MESON Chess Problem Database

Problem Display
PID: 105559 (2N1b3/8/4p3/N1k1K3/Pp1RR3/p7/8/qn4B1 w - - 0 1)

Legentil, Georges

La Vie Rennaise, 0000

2N1b3/8/4p3/N1k1K3/Pp1RR3/p7/8/qn4B1

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4+
      • 2.Bxd4#
    • 1...Qa2
      • 2.Rd2#
      • 2.Rc4#
      • 2.Rd5#
    • 1...Bc6
      • 2.Sb3#
    • 1...Sc3
      • 2.Rd1#
      • 2.Rc4#
      • 2.Rd5#
  • Tries
    • 1.Kf4?
      • threat
        • 2.Re5#
      • 1...e5+
        • 2.Rxe5#
      • 1...Qa2
        • 2.Rd2#
      • 1...Bc6
        • 2.Sb3#
      • 1...Sc3
        • 2.Rd1#
      • 1...Qxd4!
  • Keys
    • 1.Kf6!
      • threat
        • 2.Re5#
      • 1...Qa2
        • 2.Rd2#
      • 1...Bc6
        • 2.Sb3#
      • 1...Sc3
        • 2.Rd1#
      • 1...e5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(a);CHECK,OGATE,P_SPINQ(a),XR(C)::B(A),XQ(a)
    • B(g);SBLOCK::S(E)
  • Tries
    • Try
      • K(F);N_SPINR(C),S_FLIGHT
      • Threat
        • R(D)
      • Vars
        • P(f);CHECK::R(D),XP(f)
        • Q(a);N_GUARD::B(A)+R(C)
        • B(g);SBLOCK::S(E)
        • S(b);S_CUTQ(a)::B(A)+R(C)
      • Refutation
        • Q(a);P_PINR(D),P_SPINQ(a),XR(C)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • R(D)
    • Vars
      • Q(a);N_PINR(C)::B(A)+R(C)
      • B(g);SBLOCK::S(E)
      • S(b);N_PINR(C)::B(A)+R(C)
      • P(f);N_PINR(C)::R(D),XP(f)
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).