MESON Chess Problem Database

Problem Display
PID: 105208 (4R3/B2N4/2ppn1B1/Np1kb3/p2P2r1/5R2/6b1/1K3Q1n w - - 0 1)

Morice, Jean

Themes-64, 1959

4R3/B2N4/2ppn1B1/Np1kb3/p2P2r1/5R2/6b1/1K3Q1n

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Sf6#
    • 1...Bg3
      • 2.Sf6#
    • 1...Bf4
      • 2.Sf6#
    • 1...Bf6
      • 2.Sxf6#
    • 1...b4
      • 2.Qc4#
  • Tries
    • 1.Rd3?
      • threat
        • 2.Sb6#
      • 1...Rxd4
        • 2.Qxg2#
      • 1...Bxd4
        • 2.Qf5#
      • 1...Sxd4
        • 2.Qf7#
      • 1...Rxg6!
    • 1.Qxb5+?
      • 1...Sc5
        • 2.Qc4#
      • 1...c5
        • 2.Qc4#
      • 1...cxb5!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Sb6#
      • 1...Rxd4
        • 2.Be4#
      • 1...Bxd4
        • 2.Rf5#
      • 1...Sxd4
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(g);N_GUARD::S(H)
    • B(g);N_GUARD::S(H),XB(g)
    • P(e);N_GUARD::QAB1(B)
  • Tries
    • Try
      • R(C);
      • Threat
        • S(H)
      • Vars
        • R(d);N_GUARD,P_SPINR(d),XP(D)::QAB(B),XB(b)
        • B(g);OGATEB,P_SPINB(g),XP(D)::QAR2(B)
        • S(j);OGATEB,P_SPINS(j),XP(D)::QAB(B)
      • Refutation
        • R(d);XB(F)
    • Try
      • Q(B);CHECK,XP(e)
      • Vars
        • S(j);P_SPINS(j)::QAB1(B)
        • P(h);P_SPINP(h)::QAB1(B)
      • Refutation
        • P(h);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • S(H)
    • Vars
      • R(d);N_GUARD,P_SPINR(d),XP(D)::B(F)
      • B(g);OGATEB,P_SPINB(g),XP(D)::R(C)
      • S(j);OGATEB,P_SPINS(j),XP(D)::B(F)
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).