MESON Chess Problem Database

Problem Display
PID: 61583 (2R5/1p1N4/2P1P1K1/2Nk1Pp1/R2p4/P1pr4/2QnBP1B/2n5 w - - 0 1)

Guida, Marco

3rd HM., The Problemist, 2003/II

2R5/1p1N4/2P1P1K1/2Nk1Pp1/R2p4/P1pr4/2QnBP1B/2n5

#2

13 + 8

56 The Problemist 2005

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd3?
      • threat
        • 2.Sb4#
        • 2.Sf6#
      • 1...Ke4
        • 2.Sf6#
      • 1...Sxe2
        • 2.Sf6#
      • 1...Sa2
        • 2.Sf6#
      • 1...Se4
        • 2.Sb4#
        • 2.Sb6#
      • 1...Sxd3!
    • 1.Ra5?
      • threat
        • 2.Sb6#
      • 1...Kc4
        • 2.Sb6#
      • 1...Rg3
        • 2.Sxb7#
      • 1...Sc4
        • 2.Sf6#
      • 1...b6
        • 2.Sxb6#
      • 1...b5!
    • 1.cxb7?
      • threat
        • 2.Sb6#
        • 2.Sf6#
      • 1...Sc4
        • 2.Sf6#
      • 1...Se4
        • 2.Sb6#
      • 1...Rg3!
  • Keys
    • 1.Sxb7!
      • threat
        • 2.Sf6#
      • 1...Ke4
        • 2.Sf6#
      • 1...Rg3
        • 2.Ra5#
      • 1...Se4
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);XR(d)
      • Threat
        • DUALS(2)
      • Vars
        • K(f);P_SPINP(e),S_FLIGHT::S(L)
        • S(a);XB(B)::S(L)
        • S(a);::S(L)
      • Refutation
        • S(a);XS(G)
    • Try
      • R(F);
      • Threat
        • S(L)
      • Vars
        • K(f);P_SPINP(c),P_SPINR(d),S_FLIGHT::S(L)
        • R(d);::R(F)+S(G),XP(h)
        • S(b);SBLOCK::S(L)
        • P(h);::S(L),XP(h)
      • Refutation
        • P(h);
    • Try
      • P(I);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::S(L)
      • Refutation
        • R(d);
  • Actual
    • S(G);XP(h)
    • Threat
      • S(L)
    • Vars
      • K(f);P_SPINP(e),P_SPINR(d),S_FLIGHT::S(L)
      • R(d);::R(F)
      • S(b);SBLOCK::S(L)
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