MESON Chess Problem Database

Problem Display
PID: 252633 (5nK1/4pN2/4nkp1/2R3p1/2ppp1B1/2r5/1Q1B4/R7 w - - 0 1)

Kapros, Jorge Marcelo

SEPA-80 JT (Problemas), 2013-2014

5nK1/4pN2/4nkp1/2R3p1/2ppp1B1/2r5/1Q1B4/R7

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc5
      • 2.Bxg5#
    • 1...Sc7
      • 2.Bxg5#
    • 1...Sg7
      • 2.Bxg5#
    • 1...Sd8
      • 2.Bxg5#
  • Tries
    • 1.Ra6?
      • threat
        • 2.Bxg5#
      • 1...Re3
        • 2.Qxd4#
      • 1...Sh7
        • 2.Rxe6#
      • 1...e3!
    • 1.Qb6?
      • threat
        • 2.Bxg5#
      • 1...Sh7
        • 2.Qxe6#
      • 1...e3
        • 2.Rf1#
      • 1...Re3!
    • 1.Qb8?
      • threat
        • 2.Qe5#
      • 1...Sc7
        • 2.Bxg5#
      • 1...Sd7!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Bxg5#
      • 1...Re3
        • 2.Qxd4#
      • 1...Sh7
        • 2.Rxe6#
      • 1...e3
        • 2.Rf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(f);N_GUARD,XR(E)::B(C),XP(e)
    • S(f);N_GUARD::B(C),XP(e)
  • Tries
    • Try
      • R(A);P_PINS(f)
      • Threat
        • B(C),XP(e)
      • Vars
        • R(a);OGATE,P_SPINP(c)::QAB(B),XP(c)
        • S(j);N_GUARD::R1(A),XS(f)
      • Refutation
        • P(d);
    • Try
      • Q(B);P_PINS(f)
      • Threat
        • B(C),XP(e)
      • Vars
        • S(j);N_GUARD::QAR1(B),XS(f)
        • P(d);S_CUTR(a)::R(A)
      • Refutation
        • R(a);
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • S(f);N_GUARD::B(C),XP(e)
      • Refutation
        • S(j);
  • Actual
    • R(E);P_PINS(f)
    • Threat
      • B(C),XP(e)
    • Vars
      • R(a);OGATE,P_SPINP(c)::QAB(B),XP(c)
      • S(j);N_GUARD::R1(E),XS(f)
      • P(d);S_CUTR(a)::R(A)
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