MESON Chess Problem Database

Problem Display
PID: 22179 (5R2/1BRp4/1n1B2n1/b3rpNp/1p1k1NbP/1Kp1p3/2PpP3/7Q w - - 0 1)

Donnelly, Michael J

London Evening News, 1966

5R2/1BRp4/1n1B2n1/b3rpNp/1p1k1NbP/1Kp1p3/2PpP3/7Q

#2

11 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Sxe2#
    • 1...Bf3
      • 2.Sxf3#
    • 1...Bh3
      • 2.Sf3#
    • 1...Sa4
      • 2.Rc4#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Sd5
      • 2.Bc5#
      • 2.Rc4#
    • 1...Sa8
      • 2.Rc4#
    • 1...Sc8
      • 2.Rc4#
    • 1...d1Q
      • 2.Qxd1#
    • 1...d1S
      • 2.Qxd1#
    • 1...d1B
      • 2.Qxd1#
    • 1...d1R
      • 2.Qxd1#
  • Tries
    • 1.Qd5+?
      • 1...Sxd5
        • 2.Bc5#
        • 2.Rc4#
      • 1...Rxd5!
  • Keys
    • 1.Rxf5!
      • 1...Rxf5
        • 2.Qe4#
      • 1...Bxe2
        • 2.Sxe2#
      • 1...Bxf5
        • 2.Sf3#
      • 1...Sxf4
        • 2.Bxe5#
      • 1...Sxh4
        • 2.Bxe5#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...Re4
        • 2.Bc5#
        • 2.Qxe4#
      • 1...Rb5
        • 2.Qe4#
      • 1...Rc5
        • 2.Bxc5#
        • 2.Qe4#
      • 1...Rd5
        • 2.Qe4#
      • 1...Re6
        • 2.Bc5#
      • 1...Re7
        • 2.Bc5#
      • 1...Re8
        • 2.Bc5#
      • 1...Bf3
        • 2.Sxf3#
      • 1...Bh3
        • 2.Sf3#
      • 1...Sa4
        • 2.Rc4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sd5
        • 2.Bc5#
        • 2.Rc4#
      • 1...Sa8
        • 2.Rc4#
      • 1...Sc8
        • 2.Rc4#
      • 1...Se7
        • 2.Bxe5#
      • 1...Sf8
        • 2.Bxe5#
      • 1...Sh8
        • 2.Bxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • B(f);XP(C)::S(E),XB(f)
    • B(f);N_GUARD::S(G),XB(f)
    • B(f);N_GUARD::S(G)
    • S(k);N_GUARD::R1(J)
    • S(k);N_GUARD::R1(J),XS(k)
    • P(a);OGATEB,P_PINP(B)::QAR(A),XQ(a)
    • P(a);OGATEB::QAR(A),XS(a)
    • P(a);OGATEB,P_PINP(B)::QAR(A),XB(a)
    • P(a);OGATEB::QAR(A),XR(a)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • R(h);XQ(A)
  • Actual
    • R(K);XP(i)
    • Vars
      • R(h);N_GUARD,XR(K)::QAR1(A)
      • B(f);XP(C)::S(E),XB(f)
      • B(f);N_GUARD,XR(K)::S(G)
      • S(l);N_GUARD,XS(E)::B(H),XR(h)
      • S(l);N_GUARD,XP(F)::B(H),XR(h)
      • P(a);OGATEB,P_PINP(B)::QAR(A),XQ(a)
      • P(a);OGATEB::QAR(A),XS(a)
      • P(a);OGATEB,P_PINP(B)::QAR(A),XB(a)
      • P(a);OGATEB::QAR(A),XR(a)
      • R(h);N_GUARD::QAR1(A)
      • R(h);N_GUARD::B(H)
      • B(f);N_GUARD::S(G),XB(f)
      • B(f);N_GUARD::S(G)
      • S(k);N_GUARD::R1(J)
      • S(k);N_GUARD::R1(J),XS(k)
      • S(l);N_GUARD::B(H),XR(h)
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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).