MESON Chess Problem Database

Problem Display
PID: 267390 (n3B2K/4ppN1/R1n1rk1p/2B1p2P/2N1P3/2qR2Q1/3p4/5b1r w - - 0 1)

Carter, WH

Sunday Referee, 1938

(First published on Sun Nov 20 1938)

n3B2K/4ppN1/R1n1rk1p/2B1p2P/2N1P3/2qR2Q1/3p4/5b1r

#2

10 + 12

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Rf3#
    • 1...Qb2
      • 2.Rf3#
    • 1...Qb4
      • 2.Rf3#
    • 1...Qd4
      • 2.Rf3#
    • 1...Qa5
      • 2.Rf3#
    • 1...Qc1
      • 2.Rf3#
    • 1...Qc2
      • 2.Rf3#
    • 1...Qxc4
      • 2.Rf3#
    • 1...Rh4
      • 2.Qxh4#
    • 1...Rxh5
      • 2.Sxh5#
    • 1...Bh3
      • 2.Qh4#
    • 1...Sd4
      • 2.Qxe5#
  • Tries
    • 1.Qg4?
      • threat
        • 2.Qf5#
      • 1...Rxh5
        • 2.Sxh5#
      • 1...Bh3
        • 2.Qh4#
      • 1...Sd4!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qf4#
      • 1...Qxd4
        • 2.Rf3#
      • 1...Rxh5
        • 2.Sxh5#
      • 1...Sxd4
        • 2.Qxe5#
      • 1...Rh4
        • 2.Qxh4#
      • 1...Bh3
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • Q(d);N_GUARD::R(A)
    • Q(d);N_GUARD,XS(C)::R(A)
    • R(b);N_GUARD::QAB(B),XR(b)
    • R(b);XP(F)::S(H),XR(b)
    • B(a);S_CUTR(b)::QAB(B)
    • S(f);N_GUARD,P_SPINR(g),S_CUTQ(d)::QAB1(B),XP(e)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • R(b);XP(F)::S(H),XR(b)
        • B(a);S_CUTR(b)::QAB(B)
      • Refutation
        • S(f);P_SPINR(g)
  • Actual
    • B(E);P_PINP(e)
    • Threat
      • QAR2(B)
    • Vars
      • Q(d);N_GUARD,N_SPINP(e),XB(E)::R(A)
      • R(b);XP(F)::S(H),XR(b)
      • S(f);N_GUARD,N_SPINP(e),P_SPINR(g),XB(E)::QAB1(B),XP(e)
      • R(b);N_GUARD::QAB(B),XR(b)
      • B(a);S_CUTR(b)::QAB(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).