MESON Chess Problem Database

Problem Display
PID: 207182 (2bB2Qr/p1Rn4/p1n5/kB1p3r/6p1/2P5/2pN2Kb/1R6 w - - 0 1)

Chicco, Adriano

3rd Prize, Il Problema TT, 1933

2bB2Qr/p1Rn4/p1n5/kB1p3r/6p1/2P5/2pN2Kb/1R6

#2

8 + 12

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sce5
      • 2.Rxd7#
    • 1...Sde5
      • 2.Rxc6#
    • 1...d4
      • 2.Sc4#
    • 1...axb5
      • 2.Rxa7#
  • Tries
    • 1.Rb7+?
      • 1...Bc7
        • 2.Sb3#
        • 2.Ra1#
      • 1...Sxd8
        • 2.Sb3#
        • 2.Ra1#
      • 1...Sb6!
    • 1.Rxd7+?
      • 1...Bc7
        • 2.Bxc7#
      • 1...Sxd8!
  • Keys
    • 1.Qxd5!
      • threat
        • 2.Sc4#
      • 1...Kb6
        • 2.Sc4#
      • 1...axb5
        • 2.Rxa7#
      • 1...Sce5
        • 2.Bxd7#
      • 1...Sde5
        • 2.Bxc6#
      • 1...Sb6
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(h);N_GUARD,S_CUTB(b)::B(G)+R(F),XS(j)
    • S(j);N_GUARD,S_CUTB(b)::B(G)+R(F),XS(h)
    • P(e);N_GUARD::S(B)
    • P(g);XB(E)::B(G)+R(F),DCHECK,XP(i)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • S(j);P_SPINS(j)
    • Try
      • R(F);CHECK,XS(j)
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::B(G),XB(b)
      • Refutation
        • S(h);XB(G)
  • Actual
    • Q(H);XP(e)
    • Threat
      • S(B)
    • Vars
      • K(d);S_FLIGHT::S(B)
      • P(g);P_SPINP(g),XB(E)::B(G)+R(F),DCHECK,XP(i)
      • S(h);OGATE::QAR(H)+B(E),XS(j)
      • S(j);N_GUARD,S_CUTR(f)::QAR(H)+B(E),XS(h)
      • S(j);SBLOCK::S(B)
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