MESON Chess Problem Database

Problem Display
PID: 70228 (5Q2/2NpR3/3pp3/4p1K1/3PkppR/2P5/8/4NB2 w - - 0 1)

Funk, Henry E

2nd HM., Good Companions (October), 1922

5Q2/2NpR3/3pp3/4p1K1/3PkppR/2P5/8/4NB2

#2

9 + 7

3391 Het Half Pin Thema 1924
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Qxf3#
    • 1...exd4
      • 2.Qxf4#
  • Tries
    • 1.Bg2+?
      • 1...f3
        • 2.Qxf3#
      • 1...Ke3!
    • 1.Rh2?
      • threat
        • 2.Re2#
      • 1...Ke3
        • 2.Re2#
      • 1...f3!
    • 1.Rxe6?
      • threat
        • 2.Qxf4#
      • 1...Ke3
        • 2.Qxf4#
      • 1...f3
        • 2.Qxf3#
        • 2.Qf4#
      • 1...dxe6!
    • 1.dxe5?
      • threat
        • 2.Qxf4#
      • 1...Ke3
        • 2.Qxf4#
      • 1...Kxe5
        • 2.Qxf4#
        • 2.Qf5#
      • 1...f3
        • 2.Qf4#
      • 1...dxe5!
  • Keys
    • 1.Sd5!
      • 1...Kxd5
        • 2.Qa8#
      • 1...exd4
        • 2.Qf5#
      • 1...exd5
        • 2.Qxf4#
      • 1...g3
        • 2.Bg2#
      • 1...f3
        • 2.Qxf3#

This anticipates 56079(1981)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE,P_SPINP(c)::QAB1(I),XP(b)
    • P(d);N_GUARD,P_SPINP(f),XP(D)::QAR1(I),XP(b)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • P(b);OGATE,P_SPINP(b)::QAB1(I),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • K(a);P-FLIGHT::R1(E)
      • Refutation
        • P(b);
    • Try
      • R(H);P_PINP(d),XP(f)
      • Threat
        • QAR1(I),XP(b)
      • Vars
        • K(a);P-FLIGHT::QAB1(I),XP(b)
      • Refutation
        • P(g);N_SPINP(d),XR(H)
    • Try
      • P(D);XP(d)
      • Threat
        • QAR1(I),XP(b)
      • Vars
        • K(a);P-FLIGHT::QAB1(I),XP(b)
        • P(b);P_SPINP(c)::QAR1(I)
      • Refutation
        • P(e);XP(D)
  • Actual
    • S(G);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(G)::QAB(I)
      • P(d);P_SPINP(f),XP(D)::QAB1(I)
      • P(f);P_SPINP(d),SBLOCK,XS(G)::QAR1(I),XP(b)
      • P(c);P_SPINP(b)::B(B)
      • P(b);OGATE,P_SPINP(c)::QAB1(I),XP(b)
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).