MESON Chess Problem Database

Problem Display
PID: 263925 (K7/2b1p3/1pn4R/3k1N2/N2n4/Bp3P2/4r3/2QRrB2 w - - 0 1)

Foschini, Ettore

Prize, Schackvarlden, 1933

K7/2b1p3/1pn4R/3k1N2/N2n4/Bp3P2/4r3/2QRrB2

#2

9 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sc3#
      • 2.Bc4#
      • 2.Qc4#
      • 2.Qxc6#
    • 1...Be5
      • 2.Sxb6#
      • 2.Qxc6#
    • 1...Se5
      • 2.Sxe7#
      • 2.Rxd4#
    • 1...b5
      • 2.Qc5#
    • 1...e5
      • 2.Qxc6#
  • Tries
    • 1.Sc3+?
      • 1...Kc4
        • 2.Se3#
      • 1...Ke5!
    • 1.Rxd4+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Sxd4!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Se3#
      • 1...Kc4
        • 2.Se3#
      • 1...Ke5
        • 2.Sxd4#
      • 1...Re3
        • 2.Sxe3#
        • 2.Sxe7#
      • 1...Re5
        • 2.Sc3#
      • 1...Be5
        • 2.Sxb6#
      • 1...Se5
        • 2.Rxd4#
      • 1...e5
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(f);N_GUARD::QAR1(A)
    • P(i);SBLOCK::QAB1(A),XS(g)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(e);N_GUARD,N_SPINS(d),P_SPINR(b),S_FLIGHT::S(G)
      • Refutation
        • K(e);N_SPINS(d),P-FLIGHT
    • Try
      • R(B);CHECK,XS(d)
      • Vars
        • K(e);P-FLIGHT,S_CUTS(g)::QAB1(A)
      • Refutation
        • S(g);XR(B)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+S(G),DCHECK
    • Vars
      • K(e);N_SPINS(d),P_SPINR(b),S_FLIGHT::S(G)
      • K(e);N_GUARD,N_SPINS(d),P-FLIGHT,S_CUTB(h),S_CUTP(i),S_CUTR(b),S_CUTS(g)::QAR(A)+S(G),XS(d)
      • R(b);SBLOCK::S(F)
      • B(h);N_GUARD,SBLOCK::S(F),XP(f)
      • S(g);N_GUARD,SBLOCK::R1(B),XS(d)
      • P(i);N_GUARD,SBLOCK,S_CUTR(b)::QAB(A)
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