MESON Chess Problem Database

Problem Display
PID: 225683 (2B3Q1/2R1p3/1k2p2r/1N2p2b/PP1r4/2Kp4/8/6B1 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Praca, 1998

2B3Q1/2R1p3/1k2p2r/1N2p2b/PP1r4/2Kp4/8/6B1

#2

8 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rh7
      • 2.Qxe6#
    • 1...Rh8
      • 2.Qxe6#
    • 1...Bg6
      • 2.Qxe6#
    • 1...e4
      • 2.Bxd4#
  • Tries
    • 1.Rc4?
      • threat
        • 2.Qd8#
      • 1...Rh8
        • 2.Qxe6#
      • 1...Be8!
    • 1.Rb7+?
      • 1...Ka6
        • 2.Sc7#
        • 2.Rb8#
      • 1...Kc6!
    • 1.Qg2?
      • threat
        • 2.Rc6#
        • 2.Qc6#
        • 2.Qb7#
      • 1...Be8
        • 2.Qb7#
      • 1...e4
        • 2.Bxd4#
      • 1...Bf3!
    • 1.Qe8?
      • threat
        • 2.Rc6#
        • 2.Qc6#
        • 2.a5#
      • 1...Bf3
        • 2.a5#
      • 1...Bxe8!
  • Keys
    • 1.Rc5!
      • threat
        • 2.a5#
      • 1...Rc4+
        • 2.Rxc4#
      • 1...Rxb4
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(g);N_GUARD::QAR(H),XP(f)
    • B(d);S_CUTR(g)::QAR(H),XP(f)
    • P(c);N_GUARD::B(A),XR(b)
  • Tries
    • Try
      • R(F);
      • Threat
        • QAB(H)
      • Vars
        • R(g);N_GUARD::QAR(H),XP(f)
      • Refutation
        • B(d);
    • Try
      • R(F);CHECK
      • Refutation
        • K(e);N_SPINR(b),P-FLIGHT
    • Try
      • Q(H);
      • Threat
        • DUALS(3)
      • Vars
        • B(d);::QAR1(H)
        • P(c);N_GUARD::B(A),XR(b)
      • Refutation
        • B(d);
    • Try
      • Q(H);
      • Threat
        • DUALS(3)
      • Vars
        • B(d);::P(C)
      • Refutation
        • B(d);XQ(H)
  • Actual
    • R(F);N_PINR(b)
    • Threat
      • P(C)
    • Vars
      • R(b);CHECK,OGATEB::B(A)+R(F),XR(b)
      • R(b);N_GUARD,XP(D)::QAB(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).