MESON Chess Problem Database

Problem Display
PID: 271179 (8/KB3b1r/R5p1/N5rq/1PP3p1/1P1P2Pp/k5pR/N1Q5 w - - 0 1)

Kipping, Cyril Stanley

Schackvarlden, 1939

8/KB3b1r/R5p1/N5rq/1PP3p1/1P1P2Pp/k5pR/N1Q5

#2

12 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Sc6#
  • Tries
    • 1.Qb1+?
      • 1...Ka3
        • 2.Sc2#
      • 1...Kxb1!
    • 1.c5?
      • threat
        • 2.Sc4#
        • 2.Sc6#
      • 1...Bxb3
        • 2.S5xb3#
      • 1...Bc4
        • 2.Sxc4#
      • 1...Be8
        • 2.Sc6#
      • 1...Rxc5!
  • Keys
    • 1.Bxg2!
      • threat
        • 2.Bf1#
        • 2.Bh1#
        • 2.Bf3#
        • 2.Bxh3#
        • 2.Be4#
        • 2.Bd5#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
      • 1...Bxc4+
        • 2.Bb7#
      • 1...Bd5+
        • 2.Sb7#
      • 1...Be6+
        • 2.Bb7#
      • 1...Be8+
        • 2.Bb7#
      • 1...Bg8+
        • 2.Bb7#
      • 1...hxg2
        • 2.Rxg2#
      • 1...Rd5
        • 2.Bf1#
        • 2.Bh1#
        • 2.Bf3#
        • 2.Bxh3#
        • 2.Be4#
        • 2.Bxd5#
      • 1...Re5
        • 2.Be4#
      • 1...Rf5
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(h);P_PINB(L),S_CUTR(e)::R(J)+S(I)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);N_GUARD,N_SPINP(b),P-FLIGHT::S(A)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT,XQ(B)
    • Try
      • P(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(h);P_PINB(L),XP(D)::R(J)+S(I),XB(h)
        • B(h);P_PINB(L)::R(J)+S(I),XB(h)
        • B(h);P_PINB(L)::R(J)+S(I)
      • Refutation
        • R(e);XP(H)
  • Actual
    • B(L);XP(b)
    • Threat
      • DUALS(9)
    • Vars
      • B(h);CHECK,XP(H)::R(C)+B(L)
      • B(h);CHECK,S_CUTR(e)::R(J)+S(I)
      • B(h);CHECK::R(C)+B(L)
      • P(c);OGATE,P_SPINP(c),XB(L)::R(C),XP(c)
      • R(e);::R(C)+B(L)
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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).