MESON Chess Problem Database

Problem Display
PID: 168420 (8/7b/Q1Np4/3Pp1n1/3Bk3/2Rp3N/6Rn/3K3B w - - 0 1)

Petite, Efren

1st Comm., Pituk-90 JT, 1994

8/7b/Q1Np4/3Pp1n1/3Bk3/2Rp3N/6Rn/3K3B

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Rg1#
      • 2.Rxg5#
    • 1...Bf5
      • 2.Re2#
      • 2.Rg4#
    • 1...Sf1
      • 2.Rxg5#
  • Tries
    • 1.Se7?
      • threat
        • 2.Rg4#
        • 2.Qxd3#
      • 1...Kf3
        • 2.Rg1#
        • 2.Rxg5#
      • 1...Sxh3
        • 2.Rg4#
      • 1...exd4
        • 2.Re2#
      • 1...Sg4
        • 2.Rxg4#
        • 2.Qxd3#
      • 1...Sgf3
        • 2.Qxd3#
      • 1...d2
        • 2.Rg4#
        • 2.Qd3#
      • 1...Kxd4!
  • Keys
    • 1.Bxe5!
      • threat
        • 2.Qxd3#
      • 1...Ke3
        • 2.Re2#
      • 1...Kf3
        • 2.Rg3#
      • 1...Kxd5
        • 2.Qc4#
      • 1...Kf5
        • 2.Rxg5#
      • 1...d2
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::B(B)+R(C),XS(e)
  • Tries
    • Try
      • S(I);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XS(E)::B(B)+R(C),DCHECK
        • P(d);SBLOCK,XB(F)::B(B)+R(C),DCHECK
        • S(e);::QAB1(H),XP(b)
      • Refutation
        • K(c);P-FLIGHT,XB(F)
  • Actual
    • B(F);XP(d)
    • Threat
      • QAB1(H),XP(b)
    • Vars
      • K(c);P-FLIGHT,P_SPINP(b)::R1(C)
      • K(c);P_SPINP(b),S_FLIGHT::B(B)+R(C),DCHECK
      • K(c);S_FLIGHT,XP(G)::QAB1(H)
      • K(c);S_FLIGHT::R1(C),XS(e)
      • P(b);::QAB1(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).