MESON Chess Problem Database

Problem Display
PID: 267160 (K7/8/8/3Q1ppb/p1R5/r1N1k1pN/1R3b2/2r5 w - - 0 1)

Dyachuk, Vasyl Vasilovich

4th Prize, Schach, 2016-2017

K7/8/8/3Q1ppb/p1R5/r1N1k1pN/1R3b2/2r5

#2

6 + 9

45 Schach 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Rxe2#
    • 1...Bg6
      • 2.Re2#
    • 1...Bf7
      • 2.Re2#
    • 1...Be8
      • 2.Re2#
    • 1...f4
      • 2.Qe4#
    • 1...g4
      • 2.Re2#
  • Tries
    • 1.Sxg5?
      • threat
        • 2.Qd2#
        • 2.Qd4#
      • 1...Rc2
        • 2.Qd4#
      • 1...Be1
        • 2.Qd4#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Rd1!
    • 1.Rb7?
      • threat
        • 2.Re7#
      • 1...Bf3
        • 2.Qd4#
      • 1...Bf7!
    • 1.Re4+?
      • 1...fxe4
        • 2.Qxe4#
      • 1...Kf3!
    • 1.Rc7?
      • threat
        • 2.Re7#
      • 1...Bf7
        • 2.Re2#
      • 1...Bf3!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Re6#
      • 1...Bf3
        • 2.Qd2#
      • 1...Bf7
        • 2.Re2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(i);N_GUARD::R1(A),XB(i)
    • B(i);N_GUARD::R1(A)
    • P(g);N_GUARD::QAR1(E)
    • P(h);S_CUTB(i)::R1(A)
  • Tries
    • Try
      • S(C);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::QAB1(E)
        • B(b);::QAB1(E)
        • B(i);N_GUARD,P_PINQ(E)::QAR1(E),XB(i)
      • Refutation
        • R(a);
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • B(i);SBLOCK::QAB1(E)
      • Refutation
        • B(i);
    • Try
      • R(D);CHECK
      • Vars
        • P(g);OGATE,XR(D)::QAR1(E),XP(g)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • R(D);
      • Threat
        • R(D)
      • Vars
        • B(i);N_GUARD::R1(A)
      • Refutation
        • B(i);P_PINQ(E)
  • Actual
    • R(D);
    • Threat
      • R(D)
    • Vars
      • B(i);SBLOCK::QAB1(E)
      • B(i);N_GUARD::R1(A)
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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).