MESON Chess Problem Database

Problem Display
PID: 183506 (B2n3B/r1b4Q/r3p2P/p1pq1R1K/2bNk1P1/3Rp1p1/1N1p4/8 w - - 0 1)

Monreal, Pierre

Bulletin Ouvrier des Echecs, 1955

B2n3B/r1b4Q/r3p2P/p1pq1R1K/2bNk1P1/3Rp1p1/1N1p4/8

#2

10 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Re5#
    • 1...Be5
      • 2.Rf7#
    • 1...cxd4
      • 2.Rxd4#
    • 1...exf5
      • 2.Qxf5#
    • 1...e5
      • 2.Rf6#
  • Tries
    • 1.Bxd5+?
      • 1...Bxd5
        • 2.Rf1#
        • 2.Rf2#
        • 2.Rf3#
        • 2.Rf7#
        • 2.Rf8#
      • 1...exd5!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Rxe3#
      • 1...Kxd3
        • 2.Rxd5#
      • 1...Bxd3
        • 2.Sc3#
      • 1...cxd4
        • 2.Rxd4#
      • 1...exf5
        • 2.Qxf5#
      • 1...Bf4
        • 2.Re5#
      • 1...Be5
        • 2.Rf7#
      • 1...e2
        • 2.Re3#
      • 1...e5
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(l);SBLOCK::QAB(H)+R(E),DCHECK
    • B(l);N_PINR(E)::QAB(H)+R(E)
    • P(g);OGATE,XS(C)::R1(B),XP(g)
    • P(j);OGATE,P_SPINP(j),XR(E)::QAB1(H),XP(j)
    • P(j);N_PINR(E),SBLOCK::QAB(H)+R(E)
  • Tries
    • Try
      • B(I);CHECK,N_SPINR(E),XQ(h)
      • Refutation
        • P(j);XB(I)
  • Actual
    • S(A);
    • Threat
      • R1(B),XP(b)
    • Vars
      • K(e);N_SPINQ(h),S_FLIGHT,XR(B)::QAB(H)+R(E),XQ(h)
      • B(d);SBLOCK,XR(B)::S(A)
      • P(g);OGATE,XS(C)::R1(B),XP(g)
      • P(j);OGATE,P_SPINP(j),XR(E)::QAB1(H),XP(j)
      • B(l);SBLOCK::QAB(H)+R(E),DCHECK
      • B(l);N_PINR(E)::QAB(H)+R(E)
      • P(b);::R1(B)
      • P(j);N_PINR(E),SBLOCK::QAB(H)+R(E)
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).