MESON Chess Problem Database

Problem Display
PID: 157886 (r7/p2R2p1/k2N4/p2N2R1/P5p1/6r1/6PP/7K w - - 0 1)

Perrone, Gaspar J

Best Problems, 2009

r7/p2R2p1/k2N4/p2N2R1/P5p1/6r1/6PP/7K

#2

8 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4+?
      • 1...Kb6
        • 2.Sc4#
        • 2.Rb5#
        • 2.Rb7#
      • 1...axb4!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Sc4#
        • 2.Se4#
        • 2.Sb5#
        • 2.Sf5#
        • 2.Sb7#
        • 2.Sf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...Re3
        • 2.Se4#
      • 1...Rb3
        • 2.Sb5#
      • 1...Rc3
        • 2.Sc4#
      • 1...Rf3
        • 2.Sf5#
      • 1...Rb8
        • 2.Sb7#
      • 1...Rc8
        • 2.Sxc8#
      • 1...Re8
        • 2.Sxe8#
      • 1...Rf8
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • P(c);XS(E)
  • Actual
    • R(F);
    • Threat
      • DUALS(8)
    • Vars
      • R(a);::R(F)+S(G)
      • R(g);::R(F)+S(G)
      • R(g);::R(F)+S(G),XR(g)
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