MESON Chess Problem Database

Problem Display
PID: 57770 (4nr2/P2P3P/2PpPp1K/1N1k1bR1/PP3PBn/1p6/6p1/rNQ1R3 w - - 0 1)

Dyachuk, Vasyl Vasilovich

1st HM., Scacco!, 1995-1996

4nr2/P2P3P/2PpPp1K/1N1k1bR1/PP3PBn/1p6/6p1/rNQ1R3

#2

15 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Bxf3#
    • 1...Sg6
      • 2.Bf3#
  • Tries
    • 1.S5a3?
      • threat
        • 2.Qc4#
      • 1...Kd4
        • 2.Qc4#
      • 1...Rxa3!
    • 1.Sc7+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Sxc7!
    • 1.Rd1+?
      • 1...Ke4
        • 2.S1c3#
        • 2.S5c3#
        • 2.Rd4#
      • 1...Kxe6!
    • 1.Qd2+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Kxc6!
    • 1.Qe3?
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Qd4#
      • 1...Kxc6
        • 2.a8Q#
        • 2.a8B#
      • 1...fxg5!
    • 1.Qd1+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Kxc6!
  • Keys
    • 1.Be2!
      • threat
        • 2.Qc4#
      • 1...Ke4
        • 2.S1c3#
      • 1...Kxe6
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD::B(G),XS(d)
    • S(d);N_GUARD::B(G)
  • Tries
    • Try
      • S(H);
      • Threat
        • QAB1(B)
      • Vars
        • K(e);N_SPINB(f),P-FLIGHT::QAR1(B)
      • Refutation
        • R(a);XS(H)
    • Try
      • S(H);CHECK
      • Vars
        • K(e);N_SPINB(f),P-FLIGHT::QAB1(B)
      • Refutation
        • S(i);XS(H)
    • Try
      • R(C);CHECK
      • Refutation
        • K(e);S_FLIGHT,XP(K)
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);N_SPINB(f),S_FLIGHT::QAR1(B)
      • Refutation
        • K(e);N_SPINB(f),S_FLIGHT,XP(J)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(e);N_SPINB(f),S_FLIGHT::QAR1(B)
        • K(e);N_SPINB(f),S_FLIGHT,XP(J)::P=Q
      • Refutation
        • P(h);N_SPINB(f),XR(I)
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);N_SPINB(f),S_FLIGHT::QAR1(B)
      • Refutation
        • K(e);N_SPINB(f),S_FLIGHT,XP(J)
  • Actual
    • B(G);
    • Threat
      • QAB1(B)
    • Vars
      • K(e);N_SPINB(f),S_FLIGHT::S(A)
      • K(e);N_SPINB(f),S_FLIGHT,XP(K)::R(C)+B(G),DCHECK
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).