MESON Chess Problem Database

Problem Display
PID: 103737 (2K5/p4B2/2pNQ1pp/r7/1P1k3r/8/4P3/4B3 w - - 0 1)

Rumyantsev, Sergei Yuryewitch

Shakhmaty (Riga), 1971

2K5/p4B2/2pNQ1pp/r7/1P1k3r/8/4P3/4B3

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qe4#
    • 1...Rh2
      • 2.Qe4#
    • 1...Rh3
      • 2.Qe4#
    • 1...Re4
      • 2.Qxe4#
    • 1...Rhh5
      • 2.Qe4#
  • Tries
    • 1.Bxg6?
      • threat
        • 2.e3#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rh3
        • 2.Qe4#
      • 1...Ra3
        • 2.Sf5#
      • 1...Rf5
        • 2.Sxf5#
      • 1...Re5!
    • 1.Qf6+?
      • 1...Ke3
        • 2.Qf2#
      • 1...Re5!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Qe3#
      • 1...Rh3
        • 2.Qe4#
      • 1...Re4
        • 2.Qxe4#
      • 1...Ra3
        • 2.Qf6#
      • 1...Re5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD::QAR1(E)
    • R(b);N_GUARD::QAR1(E),XR(b)
  • Tries
    • Try
      • B(F);XP(e)
      • Threat
        • P(B)
      • Vars
        • R(b);N_GUARD::QAR1(E),XR(b)
        • R(b);N_GUARD::QAR1(E)
        • R(c);N_GUARD::S(D)
        • R(c);N_GUARD::S(D),XR(c)
      • Refutation
        • R(c);
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • B(A);
    • Threat
      • QAB1(E)
    • Vars
      • R(b);N_GUARD::QAR1(E)
      • R(b);N_GUARD::QAR1(E),XR(b)
      • R(c);N_GUARD::QAB(E)
      • R(c);SBLOCK::QAR1(E)
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