MESON Chess Problem Database

Problem Display
PID: 199804 (2bR4/r7/3np2R/1PpkNr2/p1p2p2/2K5/4Q3/4n3 w - - 0 1)

Handloser, Ralf Chris

Problemskak, 2014

2bR4/r7/3np2R/1PpkNr2/p1p2p2/2K5/4Q3/4n3

#2

6 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Qxc4#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Sb6#
        • 2.Rxd6#
      • 1...Rb7
        • 2.Rxd6#
      • 1...Rd7
        • 2.Sb6#
        • 2.Qxe6#
      • 1...Bd7
        • 2.Sb6#
      • 1...Ra6!
    • 1.Sg4?
      • threat
        • 2.Qxc4#
      • 1...Rd7
        • 2.Qxe6#
      • 1...Sd3
        • 2.Qf3#
      • 1...Bd7!
    • 1.Sg6?
      • threat
        • 2.Qxc4#
      • 1...Bd7
        • 2.Se7#
      • 1...Sd3
        • 2.Qf3#
      • 1...Rd7!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qxc4#
      • 1...Bd7
        • 2.Se7#
      • 1...Rd7
        • 2.Qxe6#
      • 1...Sd3
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(g);SBLOCK,XS(D)::QAB1(A),XP(c)
  • Tries
    • Try
      • S(D);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(j);::R1(F),XS(h)
        • B(k);N_SPINS(h)::S(D)
      • Refutation
        • R(j);
    • Try
      • S(D);
      • Threat
        • QAB1(A),XP(c)
      • Vars
        • R(j);N_SPINS(h),S_CUTB(k)::QAB1(A),XP(i)
        • S(a);N_GUARD::QAB(A)
      • Refutation
        • B(k);N_SPINS(h)
    • Try
      • S(D);
      • Threat
        • QAB1(A),XP(c)
      • Vars
        • B(k);N_SPINS(h),S_CUTR(j)::S(D)
        • S(a);N_GUARD::QAB(A)
      • Refutation
        • R(j);N_SPINS(h)
  • Actual
    • S(D);
    • Threat
      • QAB1(A),XP(c)
    • Vars
      • B(k);N_SPINS(h),S_CUTR(j)::S(D)
      • R(j);N_SPINS(h),S_CUTB(k)::QAB1(A),XP(i)
      • S(a);N_GUARD::QAB(A)
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