MESON Chess Problem Database

Problem Display
PID: 124376 (3RQ3/2P1K3/2RNN3/1bpk1pb1/1p5p/1PPp1PP1/1B3p2/q6B w - - 0 1)

Retter, Yosef

Mat, 1979

3RQ3/2P1K3/2RNN3/1bpk1pb1/1p5p/1PPp1PP1/1B3p2/q6B

#2

13 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sxg5?
      • threat
        • 2.Sc4#
        • 2.Sdf7#
      • 1...Ke5
        • 2.Sdf7#
        • 2.Rxc5#
        • 2.f4#
      • 1...Bxc6
        • 2.c4#
      • 1...Qa8
        • 2.f4#
      • 1...Bc4
        • 2.Sxc4#
        • 2.Sdf7#
      • 1...c4
        • 2.Sxc4#
        • 2.Sdf7#
      • 1...Qe1+!
  • Keys
    • 1.Kf7!
      • threat
        • 2.Rxc5#
      • 1...Ke5
        • 2.Rxc5#
      • 1...Bxc6
        • 2.c4#
      • 1...Bxd8
        • 2.Sf4#
      • 1...Qa7
        • 2.f4#
      • 1...Be3
        • 2.Sc4#
      • 1...c4
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = WHITE_IN_CHECK
  • Tries
    • Try
      • S(I);XB(j)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);N_GUARD,XR(G)::P(D)
        • Q(a);N_GUARD::B(A)+P(E)
      • Refutation
        • Q(a);CHECK
  • Actual
    • K(K);P-FLIGHT
    • Threat
      • R1(G),XP(g)
    • Vars
      • K(h);P-FLIGHT::R(G),XP(g)
      • B(f);N_GUARD,XR(G)::P(D)
      • B(j);N_GUARD,XR(L)::S(I)
      • Q(a);N_GUARD,P_PINP(J)::B(A)+P(E)
      • B(j);N_GUARD::R(L)+S(H)
      • P(g);::R1(G)
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).