MESON Chess Problem Database

Problem Display
PID: 192870 (b3n1rB/2b3n1/1Q2B3/R1p1rpNp/1P1k1N1P/q2pRpK1/3P1P2/8 w - - 0 1)

Rizzetti, Dante Hugo

Probleemblad, 1979

b3n1rB/2b3n1/1Q2B3/R1p1rpNp/1P1k1N1P/q2pRpK1/3P1P2/8

#2

12 + 13

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

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Rxd3#
    • 1...Qb2
      • 2.Rxd3#
    • 1...Qxb4
      • 2.Rxd3#
    • 1...Qa1
      • 2.Rxd3#
    • 1...Qa2
      • 2.Rxd3#
    • 1...Qa4
      • 2.Rxd3#
    • 1...Qxa5
      • 2.Rxd3#
    • 1...Rxe3
      • 2.Qxc5#
    • 1...Re4
      • 2.Sxf3#
      • 2.Qxc5#
    • 1...Rxe6
      • 2.Qxc5#
    • 1...Bd5
      • 2.Qxc5#
  • Keys
    • 1.Rxc5!
      • threat
        • 2.Rc4#
      • 1...Rxe3
        • 2.dxe3#
        • 2.fxe3#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Rxe6
        • 2.Sxe6#
      • 1...Sxe6
        • 2.Sxe6#
      • 1...Re4
        • 2.Sxf3#
      • 1...Rd5
        • 2.Sxf3#
      • 1...Bd5
        • 2.Rxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD::R1(C),XP(b)
    • Q(a);N_GUARD,XP(E)::R1(C),XP(b)
    • Q(a);N_GUARD,XR(H)::R1(C),XP(b)
    • R(f);N_GUARD,P_PINS(F),P_SPINS(j),XR(C)::QAB1(J),XP(e)
    • R(f);N_GUARD,P_PINS(F),P_SPINS(j),XB(K)::QAB1(J),XP(e)
    • B(k);S_CUTR(f)::QAB1(J),XP(e)
  • Actual
    • R(H);XP(e)
    • Threat
      • QAB(J)+R(H),DCHECK
    • Vars
      • R(f);OGATE,P_PINS(F),P_SPINR(f),P_SPINS(j),XR(H)::QAB1(J),XR(f)
      • R(f);P_PINS(F),P_SPINS(j),XB(K)::S(I),XR(f)
      • S(j);P_PINS(I),P_SPINR(f),XB(K)::S(F),XS(j)
      • R(f);P_PINS(F),P_SPINS(j),S_CUTB(k)::S(I),XP(c)
      • B(k);S_CUTR(f)::QAB(J)+R(H),XB(i)
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