MESON Chess Problem Database

Problem Display
PID: 282571 (4Qn2/K1pp4/Ppk5/2P5/p3p3/P7/3R4/2R4B w - - 0 1)

Waterhouse, Albert F

Bolton Football Field, 1893

(First published on Sat Oct 7 1893)

4Qn2/K1pp4/Ppk5/2P5/p3p3/P7/3R4/2R4B

#2

8 + 7

15239 Valois Notebooks 2025

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Qxd7#
    • 1...Sg6
      • 2.Qxd7#
    • 1...Sh7
      • 2.Qxd7#
    • 1...b5
      • 2.Bxe4#
      • 2.Qa8#
  • Tries
    • 1.Rb2?
      • threat
        • 2.Bxe4#
        • 2.Qa8#
      • 1...Kd5
        • 2.Qxe4#
      • 1...bxc5!
    • 1.Qxe4+?
      • 1...Kb5
        • 2.Qb4#
      • 1...d5!
    • 1.Qxf8?
      • 1...bxc5
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...d5
        • 2.Qe8#
      • 1...d6
        • 2.Qe8#
      • 1...b5
        • 2.Qa8#
      • 1...Kb5!
  • Keys
    • 1.Rd5!
      • 1...Kb5
        • 2.c6#
      • 1...Kxd5
        • 2.Qxe4#
      • 1...bxc5
        • 2.Rcxc5#
      • 1...Se6
        • 2.Qxd7#
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...e3
        • 2.cxb6#
      • 1...b5
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::QAB1(H),XP(f)
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);S_CUTP(f),S_FLIGHT::QAB1(H),XP(b)
      • Refutation
        • P(c);XP(E)
    • Try
      • Q(H);CHECK,XP(b)
      • Vars
        • K(d);S_CUTP(f),S_FLIGHT::QAR1(H)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • Q(H);XS(g)
      • Vars
        • P(f);N_SPINP(b),OGATEB::QAB(H)
        • P(f);OGATEB::QAB(H)
        • P(c);SBLOCK::QAB(H)
      • Refutation
        • K(d);N_SPINP(b),S_FLIGHT
  • Actual
    • R(C);N_PINP(b),P_PINP(f)
    • Vars
      • K(d);OGATE,S_FLIGHT::R(C)+P(E)
      • K(d);N_SPINP(f),OGATEB,P_SPINP(b),S_FLIGHT,XR(C)::QAB1(H),XP(b)
      • P(c);N_SPINP(f),OGATE,P_SPINP(c),XP(E)::R1(A),XP(c)
      • S(g);N_GUARD::QAB1(H),XP(f)
      • P(b);::R(A)+P(E),XP(c)
      • P(c);SBLOCK::QAB(H)
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).