MESON Chess Problem Database

Problem Display
PID: 5098 (8/5Q2/8/2ppP3/P2k4/2p2R2/2B3n1/6K1 w - - 0 1)

Tolosa y Carreras, Jose

Ruy Lopez, 1899

8/5Q2/8/2ppP3/P2k4/2p2R2/2B3n1/6K1

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qf6#
    • 1...Se1
      • 2.Qf4#
    • 1...Se3
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sh4
      • 2.Qf4#
  • Tries
    • 1.Kxg2?
      • threat
        • 2.Qf4#
      • 1...Kc4
        • 2.Rf4#
      • 1...Kxe5
        • 2.Qf6#
      • 1...c4!
    • 1.Rf4+?
      • 1...Kxe5
        • 2.Qf6#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Ke3!
  • Keys
    • 1.Re3!
      • 1...Kxe3
        • 2.Qf2#
      • 1...Kc4
        • 2.Re4#
      • 1...Sxe3
        • 2.Qf4#
      • 1...c4
        • 2.Qa7#
      • 1...Se1
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sh4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);OGATEB,S_FLIGHT,XP(E)::QAB1(F)
    • S(a);N_GUARD::QAR2(F)
    • S(a);N_GUARD::QAR2(F),XS(a)
  • Tries
    • Try
      • K(A);P-FLIGHT,XS(a)
      • Threat
        • QAR2(F)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(e)::R(C)
        • K(c);OGATEB,S_FLIGHT,XP(E)::QAB1(F)
      • Refutation
        • P(d);
    • Try
      • R(C);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(E)::QAB1(F)
        • S(a);OGATE,XR(C)::QAR2(F),XS(a)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(C)::QAB1(F)
      • K(c);P-FLIGHT,P_SPINP(e)::R(C)
      • S(a);N_GUARD,XR(C)::QAR2(F)
      • P(d);OGATEB,SBLOCK::QAB(F)
      • S(a);N_GUARD::QAR2(F)
      • S(a);N_GUARD::QAR2(F),XS(a)
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