MESON Chess Problem Database

Problem Display
PID: 194500 (2R2r2/K1NP4/P2pP3/2Nn1Q1r/2kPp3/4P3/2P5/4B3 w - - 0 1)

Guida, Marco

3rd HM., 07. World Cup, 2019

2R2r2/K1NP4/P2pP3/2Nn1Q1r/2kPp3/4P3/2P5/4B3

#2

12 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qxd5#
    • 1...Rh2
      • 2.Qxd5#
    • 1...Rh3
      • 2.Qxd5#
    • 1...Rh4
      • 2.Qxd5#
    • 1...Rh6
      • 2.Qxd5#
    • 1...Rh7
      • 2.Qxd5#
    • 1...Rhh8
      • 2.Qxd5#
    • 1...Rxc8
      • 2.Qf1#
    • 1...Rd8
      • 2.Qf1#
    • 1...Re8
      • 2.Qf1#
    • 1...Rg8
      • 2.Qf1#
    • 1...Rfh8
      • 2.Qf1#
    • 1...Sf6
      • 2.Qf1#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Sa5#
      • 1...Sxe3
        • 2.Se8#
      • 1...Sc3!
    • 1.Sd3?
      • threat
        • 2.Sb2#
      • 1...exd3
        • 2.Qxd3#
      • 1...Sc3
        • 2.Se8#
      • 1...Sxe3!
  • Keys
    • 1.Se8!
      • threat
        • 2.Sxd6#
      • 1...Kb5
        • 2.Sxd6#
      • 1...Rxe8
        • 2.Qf1#
      • 1...Sxe3
        • 2.Sb3#
      • 1...dxc5
        • 2.Sd6#
        • 2.Rxc5#
      • 1...Sc3
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 12
  • Sets
    • R(d);N_GUARD::QAB1(F),XS(c)
    • R(f);N_GUARD,XR(L)::QAB(F)
    • R(f);N_GUARD::QAB(F)
    • S(c);S_CUTR(f)::QAB(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • S(c);N_GUARD,XP(C)::R(L)+S(J)
      • Refutation
        • S(c);
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • P(b);OGATE,XS(E)::QAB1(F),XP(b)
        • S(c);N_GUARD::R(L)+S(J)
      • Refutation
        • S(c);XP(C)
  • Actual
    • S(J);
    • Threat
      • S(J),XP(e)
    • Vars
      • K(a);S_FLIGHT::S(J),XP(e)
      • R(f);N_GUARD,XS(J)::QAB(F)
      • S(c);N_GUARD,XP(C)::R(L)+S(E)
      • S(c);N_GUARD::R(L)+S(E)
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