MESON Chess Problem Database

Problem Display
PID: 62670 (b2B1b2/1B2p3/3R4/RN2k2r/1K4P1/pN4P1/2P1r3/1n2Q1n1 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1944

b2B1b2/1B2p3/3R4/RN2k2r/1K4P1/pN4P1/2P1r3/1n2Q1n1

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qxe3#
    • 1...Re4+
      • 2.Qxe4#
    • 1...Sd2
      • 2.Qa1#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sf3
      • 2.Qxe2#
    • 1...Sh3
      • 2.Qxe2#
  • Tries
    • 1.Rda6?
      • threat
        • 2.Sxa3#
        • 2.Sc3#
        • 2.S5d4#
        • 2.Sa7#
        • 2.Sc7#
        • 2.Bc7#
      • 1...Re4+
        • 2.S5d4#
        • 2.Qxe4#
      • 1...e6+
        • 2.Sd6#
      • 1...Rh6
        • 2.Sxa3#
        • 2.Sc3#
        • 2.S5d4#
        • 2.Sa7#
        • 2.Sc7#
      • 1...Sc3
        • 2.Sxc3#
        • 2.Bc7#
        • 2.Qxc3#
      • 1...a2
        • 2.Sa3#
        • 2.Sc3#
        • 2.S5d4#
        • 2.Sa7#
        • 2.Sc7#
        • 2.Bc7#
      • 1...Bxb7!
    • 1.Rb6?
      • threat
        • 2.Sxa3#
        • 2.Sc3#
        • 2.S5d4#
        • 2.Sa7#
        • 2.Sc7#
        • 2.Bc7#
      • 1...Re4+
        • 2.S5d4#
        • 2.Qxe4#
      • 1...e6+
        • 2.Sd6#
      • 1...Rh6
        • 2.Sxa3#
        • 2.Sc3#
        • 2.S5d4#
        • 2.Sa7#
        • 2.Sc7#
      • 1...Sc3
        • 2.Sxc3#
        • 2.Bc7#
        • 2.Qxc3#
      • 1...a2
        • 2.Sa3#
        • 2.Sc3#
        • 2.S5d4#
        • 2.Sa7#
        • 2.Sc7#
        • 2.Bc7#
      • 1...Bxb7!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Sc3#
      • 1...Re4+
        • 2.S5d4#
      • 1...e6+
        • 2.Sd6#
      • 1...Ke4
        • 2.Re6#
      • 1...Kd5
        • 2.Sc3#
      • 1...Sc3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(c);OGATE::QAR2(A),XR(c)
    • R(c);CHECK,OGATE::QAR1(A),XR(c)
    • S(a);OGATE::QAB(A)
    • S(a);N_GUARD::QAB(A),XS(a)
    • S(b);N_GUARD::QAR(A),XR(c)
  • Tries
    • Try
      • R(I);
      • Threat
        • DUALS(6)
      • Vars
        • P(g);CHECK,SBLOCK::R(G)+S(H)
      • Refutation
        • B(h);XB(J)
    • Try
      • R(I);
      • Threat
        • DUALS(6)
      • Vars
        • P(g);CHECK,SBLOCK::R(G)+S(H)
      • Refutation
        • B(h);XB(J)
  • Actual
    • R(I);
    • Threat
      • R(G)+S(H)
    • Vars
      • R(c);CHECK::R(G)+S(H)
      • P(g);CHECK,SBLOCK::R(G)+S(H)
      • K(e);P-FLIGHT::B(J)+R(I),DCHECK
      • K(e);N_SPINR(c),P-FLIGHT::R(G)+S(H),DCHECK
      • S(a);::R(G)+S(H),XS(a)
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).