MESON Chess Problem Database

Problem Display
PID: 60220 (2N3B1/1rpP3K/2pR2P1/n1k5/P4Q2/2ppp3/2n3p1/5b2 w - - 0 1)

Dyachuk, Vasyl Vasilovich

3rd Prize, Shakhmatnaya kompozitsiya, 2000

2N3B1/1rpP3K/2pR2P1/n1k5/P4Q2/2ppp3/2n3p1/5b2

#2

8 + 11

6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Qe5#
      • 2.Qg5#
      • 2.Qf5#
    • 1...Sa1
      • 2.Qd4#
    • 1...Se1
      • 2.Qd4#
    • 1...Sa3
      • 2.Qd4#
    • 1...Sb4
      • 2.Qxe3#
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sb3
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...cxd6
      • 2.Qxd6#
  • Tries
    • 1.Rxd3?
      • threat
        • 2.Qf8#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Bxd3!
    • 1.Rd4?
      • threat
        • 2.Qe5#
      • 1...Sxd4
        • 2.Qf8#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sb4!
    • 1.Rxc6+?
      • 1...Sxc6
        • 2.Qc4#
      • 1...Kxc6!
    • 1.Rf6?
      • threat
        • 2.Rf5#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb4
        • 2.Qxe3#
      • 1...Sd4!
    • 1.d8S?
      • threat
        • 2.Se6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...cxd6+!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Rxd3#
      • 1...Kb4
        • 2.Rd4#
      • 1...cxd6
        • 2.Qxd6#
      • 1...Sd4
        • 2.Rf6#
      • 1...Sc4
        • 2.Rd5#
      • 1...d2
        • 2.Rxd2#
        • 2.Rd3#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • S(b);N_GUARD::QAB1(B)
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(g);N_GUARD::QAR1(B)
    • S(g);N_GUARD::QAR1(B),XS(g)
    • P(k);OGATE,P_PINP(E),XR(C)::QAB1(B),XP(k)
  • Tries
    • Try
      • R(C);XP(e)
      • Threat
        • QAB(B)
      • Vars
        • S(g);N_GUARD::QAR1(B),XS(g)
      • Refutation
        • B(a);P_PINP(D),XR(C)
    • Try
      • R(C);
      • Threat
        • QAR2(B)
      • Vars
        • S(b);SBLOCK,XR(C)::QAB(B)
        • S(g);N_GUARD::R1(C),XS(g)
      • Refutation
        • S(b);
    • Try
      • R(C);CHECK,XP(i)
      • Vars
        • S(g);SBLOCK,XR(C)::QAR1(B)
      • Refutation
        • K(h);P-FLIGHT,XR(C)
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • S(g);N_GUARD::QAR1(B),XS(g)
        • S(b);N_GUARD,SBLOCK::QAB(B),XP(f)
      • Refutation
        • S(b);
    • Try
      • P(E);
      • Threat
        • S(E)
      • Vars
        • S(b);N_GUARD::QAB1(B),XS(b)
        • S(g);N_GUARD::QAR1(B),XS(g)
      • Refutation
        • P(k);CHECK,XR(C)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+R(C),XP(e)
    • Vars
      • K(h);S_FLIGHT::QAB(B)+R(C),DCHECK
      • P(k);OGATE,P_PINP(E),P_SPINP(k),XR(C)::QAB1(B),XP(k)
      • S(b);SBLOCK::QAB(B)+R(C)
      • S(g);SBLOCK::QAB(B)+R(C),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).