MESON Chess Problem Database

Problem Display
PID: 173566 (3N3B/2R1r2r/K1Pp3p/pQPk1B2/3b1P2/5P2/2Nnn3/3R4 w - - 0 1)

Rizzetti, Dante Hugo

Boletim da UBP, 1984

3N3B/2R1r2r/K1Pp3p/pQPk1B2/3b1P2/5P2/2Nnn3/3R4

#2

12 + 9

16325 Seleccion de Problemas de Dante Hugo Rizzetti (Kapros) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Bxe6#
    • 1...Rxc7
      • 2.Be6#
    • 1...Rd7
      • 2.Be6#
    • 1...Ref7
      • 2.Be6#
    • 1...Reg7
      • 2.Be6#
    • 1...Bxc5
      • 2.Qb3#
    • 1...Be5
      • 2.Be4#
    • 1...Se4
      • 2.Se3#
    • 1...a4
      • 2.Sb4#
  • Tries
    • 1.Be4+?
      • 1...Sxe4
        • 2.Se3#
      • 1...Rxe4!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Rxd6#
      • 1...Rxd7
        • 2.Be6#
      • 1...Bxc5
        • 2.Qb3#
      • 1...Re6
        • 2.Bxe6#
      • 1...Be5
        • 2.Be4#
        • 2.cxd6#
      • 1...Sc4
        • 2.cxd6#
      • 1...Se4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(h);N_GUARD::B(G),XR(h)
    • R(h);N_GUARD,XR(J)::B(G)
    • R(h);N_GUARD::B(G)
    • B(c);P_SPINB(c),P_SPINS(a),SBLOCK,XP(F)::QAB(E)
    • B(c);P_SPINS(a),S_CUTR(h)::B(G)
    • S(a);P_SPINB(c),S_CUTR(h)::S(B)
    • P(d);N_GUARD::S(B)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • S(a);P_SPINB(c),XB(G)::S(B)
      • Refutation
        • R(h);XB(G)
  • Actual
    • R(J);P_PINP(f)
    • Threat
      • R1(J),XP(f)
    • Vars
      • R(h);N_GUARD,N_SPINP(f),XR(J)::B(G)
      • B(c);P_SPINB(c),P_SPINS(a),SBLOCK,XP(F)::QAB(E)
      • R(h);N_GUARD::B(G),XR(h)
      • S(a);P_SPINB(c)::QAR(E)+P(F),XP(f)
      • S(a);P_SPINB(c),S_CUTR(h)::S(B)
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