MESON Chess Problem Database

Problem Display
PID: 56014 (4R1B1/4N3/2pP1P2/p1P1rN1p/Rr2k1pK/2P1p1B1/8/1b1Q4 w - - 0 1)

Mansfield, Comins

Schach-Echo, 1978

4R1B1/4N3/2pP1P2/p1P1rN1p/Rr2k1pK/2P1p1B1/8/1b1Q4

#2

12 + 9

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Rxc4#
    • 1...Rd4
      • 2.Rxd4#
    • 1...Bd3
      • 2.Qh1#
    • 1...e2
      • 2.Qxe2#
  • Keys
    • 1.Sd4!
      • 1...Rxa4
        • 2.Qxb1#
      • 1...Rxd4
        • 2.Rxd4#
      • 1...Rxc5
        • 2.Sd5#
      • 1...Rxe7
        • 2.Rxe7#
      • 1...e2
        • 2.Qxe2#
      • 1...Rb2
        • 2.Sb3#
      • 1...Rb3
        • 2.Sxb3#
      • 1...Rc4
        • 2.Qxb1#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Rb6
        • 2.Sb5#
      • 1...Rb7
        • 2.Sb5#
      • 1...Rb8
        • 2.Sb5#
      • 1...Rd5
        • 2.Sxd5#
      • 1...Rf5
        • 2.Sexf5#
      • 1...Rg5
        • 2.Sef5#
      • 1...Re6
        • 2.Bh7#
      • 1...Ba2
        • 2.Qc2#
      • 1...Bc2
        • 2.Qxc2#
      • 1...Bd3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::R(D),XR(c)
    • R(c);OGATE::R1(D),XR(c)
    • B(a);SBLOCK::QAB(A)
    • P(b);OGATEB::QAR2(A),XP(b)
  • Actual
    • S(G);N_PINR(c)
    • Vars
      • R(c);N_GUARD,XR(D)::QAB(A),XB(a)
      • R(c);OGATE,P_SPINR(c),XS(G)::R1(D),XR(c)
      • R(g);XP(F)::R(K)+S(J)
      • R(g);OGATE,P_SPINR(g),XS(J)::R(K),XR(g)
      • P(b);OGATEB::QAR2(A),XP(b)
      • R(c);::R(D)+S(G)
      • R(c);::R(D)+S(G),XR(c)
      • R(c);N_GUARD::QAB(A),XB(a)
      • R(g);::R(K)+S(J),XR(g)
      • R(g);::R(K)+S(J)
      • R(g);N_GUARD::B(L)
      • B(a);N_GUARD::QAB(A)
      • B(a);N_GUARD::QAB(A),XB(a)
      • B(a);SBLOCK::QAB(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).