MESON Chess Problem Database

Problem Display
PID: 7358 (R6N/Pp2kp2/bPP1p3/1PKpPB2/2pPpPP1/B5N1/8/8 w - d5 0 1)

Donati, Gianni

StrateGems, 1999

R6N/Pp2kp2/bPP1p3/1PKpPB2/2pPpPP1/B5N1/8/8

#2

14 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb5
      • 2.Kxb5#
    • 1...exf5
      • 2.Kxd5#
    • 1...bxc6
      • 2.Kxc6#
  • Tries
    • 1.Sxe4?
      • 1...Bxb5
        • 2.Kxb5#
      • 1...dxe4
        • 2.Kxc4#
      • 1...exf5
        • 2.Kxd5#
      • 1...bxc6
        • 2.Kxc6#
      • 1...f6
        • 2.exf6#
      • 1...c3!
    • 1.bxa6?
      • threat
        • 2.Kb5#
      • 1...exf5
        • 2.Kxd5#
      • 1...bxc6
        • 2.Kxc6#
      • 1...bxa6!
  • Keys
    • 1.exd5 ep+!
      • 1...Kf6
        • 2.Sh5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(d);XP(F)::B(A)+K(G),XB(d)
    • P(e);XB(I)::B(A)+K(G),XP(c)
    • P(f);XP(K)::B(A)+K(G),XP(f)
  • Tries
    • Try
      • S(B);XP(b)
      • Vars
        • B(d);XP(F)::B(A)+K(G),XB(d)
        • P(c);XS(B)::B(A)+K(G),XP(a)
        • P(e);XB(I)::B(A)+K(G),XP(c)
        • P(f);XP(K)::B(A)+K(G),XP(f)
        • P(h);OGATE::P(H),XP(h)
      • Refutation
        • P(a);
    • Try
      • P(F);XB(d)
      • Threat
        • B(A)+K(G)
      • Vars
        • P(e);XB(I)::B(A)+K(G),XP(c)
        • P(f);XP(K)::B(A)+K(G),XP(f)
      • Refutation
        • P(f);XP(F)
  • Actual
    • P(H);CHECK,EP,XP(c)
    • Vars
      • K(g);S_FLIGHT::S(B)
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