MESON Chess Problem Database

Problem Display
PID: 145051 (8/7B/5Rrp/3pn1p1/K1N3nq/P1R3P1/pN4bp/rk4bQ w - - 0 1)

Chicco, Adriano

Magyar Sakkvilag, 1931

8/7B/5Rrp/3pn1p1/K1N3nq/P1R3P1/pN4bp/rk4bQ

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Rxf1#
    • 1...Bxh1
      • 2.Rf1#
    • 1...Be4
      • 2.Rf1#
    • 1...Sf3
      • 2.Bxg6#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sd2#
        • 2.Rc1#
      • 1...Sxf6
        • 2.Rc1#
      • 1...Sxc4
        • 2.Rc1#
      • 1...dxc4
        • 2.Rc1#
      • 1...Sf2
        • 2.Rc1#
      • 1...Se3
        • 2.Rc1#
      • 1...Sf3
        • 2.Rc1#
      • 1...Sxd3!
    • 1.Bxg6+?
      • 1...Be4
        • 2.Rf1#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sxg6!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Sd2#
      • 1...Sxc4
        • 2.Sxc4#
      • 1...dxc4
        • 2.Sxc4#
      • 1...Sf2
        • 2.Sd1#
      • 1...Se3
        • 2.Sd1#
      • 1...Sf6
        • 2.Sd3#
      • 1...Sf3
        • 2.Bxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • B(e);N_GUARD,N_SPINB(c)::R(H),XB(e)
    • B(e);N_GUARD,N_SPINB(c),XQ(A)::R(H)
    • B(e);N_GUARD,N_SPINR(l)::R(H)
    • S(j);N_GUARD,S_CUTB(e)::B(I),XR(l)
  • Tries
    • Try
      • S(B);N_PINR(l)
      • Threat
        • DUALS(2)
      • Vars
        • S(g);P_PINS(G),XR(H)::R1(D)
        • S(j);XS(G)::R1(D)
        • P(i);XS(G)::R1(D)
        • S(g);P_PINS(G)::R1(D)
        • S(j);::R1(D)
      • Refutation
        • S(j);XS(B)
    • Try
      • B(I);CHECK,XR(l)
      • Vars
        • B(e);::R(H)
        • S(j);N_GUARD,P_SPINS(j)::B(I),XS(j)
      • Refutation
        • S(j);XB(I)
  • Actual
    • R(H);
    • Threat
      • S(G)
    • Vars
      • S(j);XS(G)::R(H)+S(B),XS(j)
      • P(i);XS(G)::R(H)+S(B),XP(i)
      • S(g);P_PINS(G)::R(H)+S(B)
      • S(j);N_GUARD,S_CUTB(e)::B(I),XR(l)
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