MESON Chess Problem Database

Problem Display
PID: 164700 (3n1BQ1/4r1b1/2p1p2p/7R/3kP1N1/3P4/3K4/8 w - - 0 1)

Jankevics, Karlis

Sachova skladba, 2007

3n1BQ1/4r1b1/2p1p2p/7R/3kP1N1/3P4/3K4/8

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ra7
      • 2.Bc5#
    • 1...Rb7
      • 2.Bc5#
    • 1...Rc7
      • 2.Bc5#
    • 1...Rd7
      • 2.Bc5#
    • 1...Rf7
      • 2.Bc5#
    • 1...Re8
      • 2.Bc5#
    • 1...e5
      • 2.Qc4#
  • Tries
    • 1.Se3?
      • threat
        • 2.Sc2#
      • 1...e5
        • 2.Qc4#
      • 1...Be5!
    • 1.Bxg7+?
      • 1...e5
        • 2.Qc4#
      • 1...Rxg7!
    • 1.Qxe6?
      • threat
        • 2.Qc4#
        • 2.Qd6#
      • 1...Rxe6
        • 2.Bc5#
      • 1...Be5
        • 2.Qc4#
      • 1...Sb7
        • 2.Qc4#
      • 1...Rd7
        • 2.Bc5#
        • 2.Qc4#
        • 2.Qxd7#
      • 1...Sf7
        • 2.Qc4#
      • 1...Sxe6!
    • 1.Qxg7+?
      • 1...Rxg7
        • 2.Bc5#
      • 1...e5!
  • Keys
    • 1.Sh2!
      • threat
        • 2.Sf3#
      • 1...Be5
        • 2.Qg1#
      • 1...e5
        • 2.Qc4#
      • 1...Rf7
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(e);OGATE::B(F)
    • P(c);OGATE::QAR1(G)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • P(c);OGATE::QAR1(G)
      • Refutation
        • B(f);
    • Try
      • B(F);CHECK,XB(f)
      • Vars
        • P(c);OGATE,P_SPINP(c)::QAR1(G)
      • Refutation
        • R(e);XB(F)
    • Try
      • Q(G);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(e);OGATE,XQ(G)::B(F)
        • B(f);::QAR1(G)
        • S(g);::QAR1(G)
      • Refutation
        • S(g);XQ(G)
    • Try
      • Q(G);CHECK,XB(f)
      • Vars
        • R(e);OGATE,XQ(G)::B(F)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • B(f);OGATE::QAB(G)
      • P(c);OGATE::QAR1(G)
      • R(e);OGATE::B(F)
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