MESON Chess Problem Database

Problem Display
PID: 266592 (6QK/6Bp/1p2NNk1/8/5pr1/3R2p1/2R4n/1B5q w - - 0 1)

Shanshin, Valery Yurevich

Zadachi i Etyudi, 2011

6QK/6Bp/1p2NNk1/8/5pr1/3R2p1/2R4n/1B5q

#2

8 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Rc5?
      • threat
        • 2.Sf8#
        • 2.Qe8#
      • 1...Qd5
        • 2.Rdxd5#
      • 1...Qc6
        • 2.Sf8#
        • 2.Rdd5#
      • 1...Qb7
        • 2.Sf8#
        • 2.Rdd5#
      • 1...Qa8
        • 2.Rdd5#
      • 1...bxc5!
    • 1.Rd7?
      • threat
        • 2.Qxh7#
      • 1...Kf5
        • 2.Rc5#
      • 1...Qa8
        • 2.Rc6#
      • 1...Sf1
        • 2.Rg2#
      • 1...Sf3
        • 2.Rc1#
      • 1...h5
        • 2.Qh7#
      • 1...h6
        • 2.Qh7#
      • 1...Rh4!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Qxh7#
      • 1...Kf5
        • 2.Rd5#
      • 1...Qa8
        • 2.Rd5#
      • 1...Rh4
        • 2.Rxg3#
      • 1...Sf1
        • 2.Rf3#
      • 1...Sf3
        • 2.Rd1#
      • 1...h5
        • 2.Qh7#
      • 1...h6
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);N_GUARD::B(A)+R(C),XQ(a)
        • Q(a);N_GUARD,P_PINQ(G)::B(A)+R(C)
      • Refutation
        • P(f);XR(B)
    • Try
      • R(C);
      • Threat
        • QAB1(G),XP(h)
      • Vars
        • K(g);S_FLIGHT::B(A)+R(B),DCHECK
        • Q(a);N_GUARD,P_PINQ(G)::B(A)+R(B)
        • S(b);S_CUTQ(a)::B(A)+R(B)
        • P(h);::QAB1(G)
      • Refutation
        • R(e);
  • Actual
    • R(B);
    • Threat
      • QAB1(G),XP(h)
    • Vars
      • K(g);S_FLIGHT::B(A)+R(C),DCHECK
      • Q(a);N_GUARD,P_PINQ(G)::B(A)+R(C)
      • R(e);::B(A)+R(C),DCHECK,XP(c)
      • S(b);S_CUTQ(a)::B(A)+R(C)
      • P(h);::QAB1(G)
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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).