MESON Chess Problem Database

Problem Display
PID: 44712 (8/5P2/4n3/p2pN3/Q1RPk1P1/1nP5/3pP1N1/3K4 w - - 0 1)

Kapros, Jorge Marcelo

Problem Observer, 2002

8/5P2/4n3/p2pN3/Q1RPk1P1/1nP5/3pP1N1/3K4

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...dxc4
      • 2.Qc6#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sf2#
      • 1...Sexd4
        • 2.Qe8#
      • 1...dxc4
        • 2.Qc6#
      • 1...Sbxd4!
    • 1.Sd7?
      • threat
        • 2.Sf6#
      • 1...Sbxd4
        • 2.Qc2#
      • 1...Sexd4!
    • 1.f8Q?
      • threat
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sbxd4
        • 2.Qf5#
      • 1...Sexd4
        • 2.Qf4#
        • 2.Qf5#
      • 1...dxc4
        • 2.Qc6#
        • 2.Qf3#
        • 2.Qa8#
      • 1...Sf4
        • 2.Qxf4#
        • 2.Qf5#
      • 1...Sg5
        • 2.Qf4#
        • 2.Qf5#
      • 1...Sg7
        • 2.Qf3#
        • 2.Qf4#
      • 1...Sxf8!
  • Keys
    • 1.Sf3!
      • 1...Sbxd4
        • 2.Qc2#
      • 1...Sexd4
        • 2.Qe8#
      • 1...dxc4
        • 2.Qc6#
      • 1...Sa1
        • 2.Sxd2#
      • 1...Sc1
        • 2.Sxd2#
      • 1...Sbc5
        • 2.Sxd2#
      • 1...Sf4
        • 2.Sg5#
      • 1...Sec5
        • 2.Sg5#
      • 1...Sg5
        • 2.Sxg5#
      • 1...Sc7
        • 2.Sg5#
      • 1...Sg7
        • 2.Sg5#
      • 1...Sd8
        • 2.Sg5#
      • 1...Sf8
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATEB,XR(F)::QAB(E)
  • Tries
    • Try
      • S(I);
      • Threat
        • S(I)
      • Vars
        • S(f);OGATEB,P_SPINS(f),XP(G)::QAR(E)
        • P(e);OGATEB,XR(F)::QAB(E)
      • Refutation
        • S(b);P_SPINS(b),XP(G)
    • Try
      • S(I);
      • Threat
        • S(I)
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(G)::QAB(E)
      • Refutation
        • S(f);P_SPINS(f),XP(G)
    • Try
      • P(J);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);P_SPINS(b),XP(G)::QAB1(J)
      • Refutation
        • S(f);XQ(J)
  • Actual
    • S(I);
    • Vars
      • S(b);OGATE,P_SPINS(b),XP(G)::QAB(E)
      • S(f);OGATEB,P_SPINS(f),XP(G)::QAR(E)
      • P(e);OGATEB,XR(F)::QAB(E)
      • S(b);N_GUARD::S(I),XP(a)
      • S(f);N_GUARD::S(I)
      • S(f);N_GUARD::S(I),XS(f)
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