MESON Chess Problem Database

Problem Display
PID: 164774 (1Bb3r1/p3b1p1/2p1p1B1/2pkN2R/2pnN1K1/2P3P1/3Q1P2/4R3 w - - 0 1)

Handloser, Ralf Chris

The Problemist, 2016

1Bb3r1/p3b1p1/2p1p1B1/2pkN2R/2pnN1K1/2P3P1/3Q1P2/4R3

#2

11 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Bxf6
        • 2.Be4#
      • 1...gxf6!
    • 1.Sd3+?
      • 1...Bg5
        • 2.Sf4#
      • 1...Sf5
        • 2.Sc1#
        • 2.Sb2#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sdxc5#
      • 1...e5+!
    • 1.Sd7+?
      • 1...e5
        • 2.Bf7#
        • 2.Rxe5#
      • 1...Bg5!
    • 1.Qd3?
      • threat
        • 2.Qxc4#
      • 1...cxd3
        • 2.c4#
      • 1...Ba6!
    • 1.cxd4?
      • threat
        • 2.Sc3#
        • 2.dxc5#
      • 1...Bg5
        • 2.Sc3#
      • 1...c3
        • 2.Sxc3#
      • 1...cxd4!
  • Keys
    • 1.Sxc5!
      • threat
        • 2.Qxd4#
      • 1...Kxc5
        • 2.Sd7#
      • 1...Bxc5
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • B(h);XS(F)::B(J)
      • Refutation
        • P(i);P_PINB(J),XS(F)
    • Try
      • S(H);CHECK,N_PINS(b)
      • Vars
        • B(h);P_SPINB(h)::S(H)
      • Refutation
        • P(f);CHECK,P_SPINP(f)
    • Try
      • S(H);CHECK
      • Refutation
        • B(h);P_SPINB(h)
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(a)
      • Vars
        • P(a);N_SPINS(b),OGATE,XQ(B)::P(D)
      • Refutation
        • B(j);
    • Try
      • P(D);XS(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(h);::S(F)
        • P(a);::S(F),XP(a)
      • Refutation
        • P(c);P_SPINP(c),XP(D)
  • Actual
    • S(F);XP(c)
    • Threat
      • QAR1(B),XS(b)
    • Vars
      • K(d);N_SPINS(b),P-FLIGHT,XS(F)::R(I)+S(H),DCHECK
      • B(h);SBLOCK,XS(F)::B(J)
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).