MESON Chess Problem Database

Problem Display
PID: 139430 (R3NK2/3k4/2p1p3/3p1b2/3r4/8/5Np1/5RQ1 w - - 0 1)

Dyachuk, Vasyl Vasilovich

2nd Prize, Troll, 2009-2010

R3NK2/3k4/2p1p3/3p1b2/3r4/8/5Np1/5RQ1

#2

6 + 7

23 Die Schwalbe 2013

SOLUTION

  • SOUND
  • Sets
    • 1...gxf1Q
      • 2.Qg7#
    • 1...gxf1S
      • 2.Qg7#
    • 1...gxf1B
      • 2.Qg7#
    • 1...gxf1R
      • 2.Qg7#
  • Tries
    • 1.Se4?
      • threat
        • 2.Sc5#
        • 2.S4f6#
      • 1...Rxe4
        • 2.Qa7#
      • 1...Bxe4
        • 2.Rf7#
      • 1...dxe4
        • 2.Qxd4#
      • 1...e5
        • 2.Sc5#
      • 1...Rc4
        • 2.S4f6#
        • 2.Qa7#
      • 1...c5!
    • 1.Sg4?
      • threat
        • 2.Se5#
        • 2.Sgf6#
      • 1...Rxg4
        • 2.Qa7#
      • 1...Bxg4
        • 2.Rf7#
      • 1...c5
        • 2.Se5#
      • 1...Re4
        • 2.Sgf6#
        • 2.Qa7#
      • 1...e5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sc5#
        • 2.Se5#
      • 1...Rxd3
        • 2.Qa7#
      • 1...Bxd3
        • 2.Rf7#
      • 1...c5
        • 2.Se5#
      • 1...e5
        • 2.Sc5#
      • 1...Rc4
        • 2.Se5#
        • 2.Qa7#
      • 1...Re4
        • 2.Sc5#
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • P(a);OGATE,XR(A)::QAR(B)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);OGATE,XS(C)::QAR(B)
        • B(d);OGATE,XS(C)::R(A)
        • P(c);OGATEB,XS(C)::QAR(B),XR(b)
        • P(f);::S(C)
      • Refutation
        • P(e);
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);OGATE,XS(C)::QAR(B)
        • B(d);OGATE,XS(C)::R(A)
        • P(e);::S(C)
      • Refutation
        • P(f);
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • R(b);OGATE,XS(C)::QAR(B)
      • B(d);OGATE,XS(C)::R(A)
      • P(e);::S(C)
      • P(f);::S(C)
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