MESON Chess Problem Database

Problem Display
PID: 70276 (1B6/5K2/1p3Np1/p4k1p/2p1pp1P/r7/7R/1b5Q w - - 0 1)

Sarkits, Anatoly L

2nd Prize, St. Petersburg, 1998

1B6/5K2/1p3Np1/p4k1p/2p1pp1P/r7/7R/1b5Q

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Qxe4#
    • 1...Ba2
      • 2.Qxe4#
    • 1...e3
      • 2.Qd5#
  • Tries
    • 1.Rb2?
      • threat
        • 2.Rb5#
      • 1...Rd3
        • 2.Qxe4#
      • 1...b5
        • 2.Rxb5#
      • 1...Rb3!
    • 1.Rg2?
      • threat
        • 2.Rg5#
      • 1...g5
        • 2.Rxg5#
      • 1...Rg3!
    • 1.Qg2?
      • threat
        • 2.Qg5#
        • 2.Qxg6#
      • 1...g5
        • 2.Qxg5#
      • 1...Rg3!
    • 1.Qxb1?
      • threat
        • 2.Qxe4#
        • 2.Qb5#
      • 1...Rb3
        • 2.Qxe4#
      • 1...Re3
        • 2.Qb5#
      • 1...b5
        • 2.Qxe4#
        • 2.Qxb5#
      • 1...Rd3!
    • 1.Qg1?
      • threat
        • 2.Qg5#
        • 2.Qxg6#
      • 1...g5
        • 2.Qxg5#
      • 1...Rg3!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Rd5#
      • 1...Rd3
        • 2.Qxe4#
      • 1...Bd3
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(b);S_CUTB(a)::QAB1(A),XP(d)
    • B(a);N_GUARD::QAB1(A),XP(d)
    • P(d);OGATE::QAR2(A)
  • Tries
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • R(b);S_CUTB(a)::QAB1(A),XP(d)
        • P(i);::R(B),XP(i)
      • Refutation
        • R(b);
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • P(j);::R1(B),XP(j)
      • Refutation
        • R(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(j);::QAR1(A),XP(j)
      • Refutation
        • R(b);
    • Try
      • Q(A);P_PINP(d),XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::QAB1(A),XP(d)
        • R(b);::QAR(A)
      • Refutation
        • R(b);N_SPINP(d)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(j);::QAR1(A),XP(j)
      • Refutation
        • R(b);
  • Actual
    • R(B);
    • Threat
      • R(B)
    • Vars
      • R(b);S_CUTB(a)::QAB1(A),XP(d)
      • B(a);S_CUTR(b)::QAB(A)
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).