MESON Chess Problem Database

Problem Display
PID: 233786 (B2qr3/1N1p4/7r/2pnp1b1/P1kp3p/1Rn2N2/PP2P1Q1/2R4K w - - 0 1)

Schneider, Michael

Freie Presse, 1967

B2qr3/1N1p4/7r/2pnp1b1/P1kp3p/1Rn2N2/PP2P1Q1/2R4K

#2

11 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Sxa5#
    • 1...Qf6
      • 2.Sa5#
    • 1...Qe7
      • 2.Sa5#
    • 1...Qb8
      • 2.Sa5#
    • 1...Qc8
      • 2.Sa5#
    • 1...Rh5
      • 2.Sd6#
    • 1...Rb6
      • 2.Sa5#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Rh7
      • 2.Sd6#
    • 1...Rhh8
      • 2.Sd6#
    • 1...Rf8
      • 2.Sxe5#
    • 1...Rg8
      • 2.Sxe5#
    • 1...Reh8
      • 2.Sxe5#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bf6
      • 2.Sd2#
      • 2.Sd6#
    • 1...Be7
      • 2.Sd2#
      • 2.Sxe5#
    • 1...Se3
      • 2.Sd2#
    • 1...Sf4
      • 2.Sd2#
    • 1...Sb6
      • 2.Sa5#
    • 1...Sf6
      • 2.Sd6#
    • 1...Sc7
      • 2.Sa5#
    • 1...Se7
      • 2.Sxe5#
  • Keys
    • 1.Rb5!
      • threat
        • 2.b3#
      • 1...Se3
        • 2.Sd2#
      • 1...Sb4
        • 2.Rxc5#
      • 1...Sf4
        • 2.Sd2#
      • 1...Sb6
        • 2.Sa5#
      • 1...Sf6
        • 2.Sd6#
      • 1...Sc7
        • 2.Sa5#
      • 1...Se7
        • 2.Sxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 14
  • Sets
    • Q(k);N_GUARD::S(J),XQ(k)
    • Q(k);N_GUARD::S(J)
    • R(i);N_GUARD::S(J)
    • R(i);S_CUTQ(k)::S(J)
    • R(i);N_GUARD::S(J),XR(i)
    • R(l);N_GUARD::S(H),XP(g)
    • B(h);N_GUARD::S(H),XB(h)
    • S(f);S_CUTB(h)::S(H)
    • S(f);S_CUTQ(k)::S(J)
    • S(f);S_CUTR(i)::S(J)
    • S(f);S_CUTR(l)::S(H),XP(g)
  • Actual
    • R(G);
    • Threat
      • P(D)
    • Vars
      • S(f);S_CUTB(h)::S(H)
      • S(f);SBLOCK::R1(G),XP(e)
      • S(f);S_CUTQ(k)::S(J)
      • S(f);S_CUTR(i)::S(J)
      • S(f);S_CUTR(l)::S(H),XP(g)
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