MESON Chess Problem Database

Problem Display
PID: 44310 (4K3/4nQ1p/8/1Nb1p2N/2r1k2p/1pp4R/5B2/1qn4b w - - 0 1)

Kipping, Cyril Stanley

Reading Observer, 1912

4K3/4nQ1p/8/1Nb1p2N/2r1k2p/1pp4R/5B2/1qn4b

#2

6 + 12

4792 300 Chess Problems 1916

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Rxh4#
    • 1...Ra4
      • 2.Sxc3#
    • 1...Rb4
      • 2.Sxc3#
    • 1...Rd4
      • 2.Sxc3#
      • 2.Re3#
    • 1...Bf3
      • 2.Qxf3#
    • 1...Ba3
      • 2.Re3#
    • 1...Be3
      • 2.Rxe3#
    • 1...Bb4
      • 2.Re3#
    • 1...Bd4
      • 2.Sd6#
    • 1...Bb6
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
      • 2.Re3#
    • 1...Ba7
      • 2.Sd6#
    • 1...Sd5
      • 2.Qxh7#
    • 1...Sf5
      • 2.Qb7#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Sd6#
        • 2.Re3#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Qd3
        • 2.Rxh4#
      • 1...Rd4
        • 2.Sxc3#
      • 1...Sd5
        • 2.Sd6#
        • 2.Qxh7#
      • 1...Sf5
        • 2.Qb7#
      • 1...Sc8
        • 2.Re3#
      • 1...Rxc5!
    • 1.Qxc4+?
      • 1...Bd4
        • 2.Sd6#
      • 1...Kf5!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Re3#
      • 1...Rxd4
        • 2.Sxc3#
      • 1...Bxd4
        • 2.Sd6#
      • 1...exd4
        • 2.Qe6#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Qd3
        • 2.Rxh4#
      • 1...Sd5
        • 2.Qxh7#
      • 1...Sf5
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(a);SBLOCK::R(B),XP(h)
    • R(f);N_GUARD::S(C),XP(e)
    • B(c);N_GUARD::QAB1(E),XB(c)
    • B(i);N_GUARD::R1(B)
    • B(i);N_GUARD::R1(B),XB(i)
    • B(i);N_GUARD::S(C)
    • S(k);N_GUARD,SBLOCK::QAB(E),XP(l)
    • S(k);OGATE,SBLOCK::QAB(E)
  • Tries
    • Try
      • B(A);XB(i)
      • Threat
        • DUALS(2)
      • Vars
        • B(c);N_GUARD::QAB1(E),XB(c)
        • Q(a);SBLOCK::R(B),XP(h)
        • R(f);N_GUARD::S(C),XP(e)
        • S(k);OGATE,SBLOCK::QAB(E)
        • S(k);::R1(B)
      • Refutation
        • R(f);XB(A)
    • Try
      • Q(E);CHECK,XR(f)
      • Vars
        • B(i);P_SPINB(i)::S(C)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • B(A);
    • Threat
      • R1(B)
    • Vars
      • R(f);N_GUARD,SBLOCK,XB(A)::S(C),XP(e)
      • B(i);N_GUARD,SBLOCK,XB(A)::S(C)
      • P(j);OGATEB,XB(A)::QAR2(E)
      • B(c);N_GUARD::QAB1(E),XB(c)
      • Q(a);SBLOCK::R(B),XP(h)
      • S(k);N_GUARD,SBLOCK::QAB(E),XP(l)
      • S(k);OGATE,SBLOCK::QAB(E)
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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).