MESON Chess Problem Database

Problem Display
PID: 259027 (7B/NK4Nq/BpQpP3/6Rr/3kb2p/3Ppp2/1nR5/1rn1b3 w - - 0 1)

Hume, George

Pirnie, Duncan

Western Morning News, 1923

(First published on Sat Jan 6 1923)

7B/NK4Nq/BpQpP3/6Rr/3kb2p/3Ppp2/1nR5/1rn1b3

#2

10 + 13

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Sxf5#
    • 1...Qg6
      • 2.Sf5#
    • 1...Qg8
      • 2.Sf5#
      • 2.Qxe4#
    • 1...Qh6
      • 2.Sf5#
      • 2.Qxe4#
    • 1...Qxg7+
      • 2.Bxg7#
    • 1...Qxh8
      • 2.Qxe4#
    • 1...Bxd3
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bf5
      • 2.Qxd6#
    • 1...Bxc6+
      • 2.Sxc6#
    • 1...Bg6
      • 2.Qd5#
      • 2.Qxb6#
      • 2.Qxd6#
    • 1...Scxd3
      • 2.Sb5#
    • 1...Sbxd3
      • 2.Rc4#
    • 1...d5
      • 2.Qxb6#
  • Keys
    • 1.Rf5!
      • threat
        • 2.Qxe4#
      • 1...Qxg7+
        • 2.Bxg7#
      • 1...Bxc6+
        • 2.Sxc6#
      • 1...Qxf5
        • 2.Sxf5#
      • 1...Bxd3
        • 2.Qd5#
      • 1...Bxf5
        • 2.Qxd6#
      • 1...Scxd3
        • 2.Sb5#
      • 1...Sbxd3
        • 2.Rc4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...d5
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(m);N_PINS(I)::B(J)+S(I),DCHECK,XQ(m)
    • Q(m);N_PINS(I)::B(J)+S(I),DCHECK
    • Q(m);CHECK,OGATE,P_SPINQ(m),XS(I)::B(J),XQ(m)
    • Q(m);N_GUARD,N_PINS(I),XB(J)::QAR1(E),XB(h)
    • B(h);N_GUARD,N_PINQ(E),XP(B)::QAR1(E)
    • B(h);N_GUARD::QAR1(E),XB(h)
    • B(h);N_PINQ(E)::QAR2(E),XP(l)
    • B(h);CHECK,XQ(E)::S(G),XB(h)
    • S(b);SBLOCK,XP(B)::S(G)
    • S(d);N_GUARD,SBLOCK,XP(B)::R1(A)
    • P(l);N_PINQ(E)::QAB(E),XP(k)
  • Actual
    • R(C);
    • Threat
      • QAR1(E),XB(h)
    • Vars
      • Q(m);CHECK,OGATE,P_SPINQ(m),XS(I)::B(J),XQ(m)
      • B(h);CHECK,XQ(E)::S(G),XB(h)
      • Q(m);N_PINS(I),XR(C)::B(J)+S(I),DCHECK,XQ(m)
      • B(h);N_GUARD,N_PINQ(E),XP(B)::QAR1(E)
      • B(h);N_PINQ(E),XR(C)::QAR2(E),XP(l)
      • S(b);SBLOCK,XP(B)::S(G)
      • S(d);N_GUARD,SBLOCK,XP(B)::R1(A)
      • B(h);N_GUARD::QAR1(E),XB(h)
      • P(l);N_PINQ(E)::QAB(E),XP(k)
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).