MESON Chess Problem Database

Problem Display
PID: 103746 (8/1p6/1Npp1K2/2pPP1N1/5k2/p3p1pP/1B1R2p1/8 w - - 0 1)

Rallo, Vito

Sandrucci, Paolo

Telescacco 92, 1998

8/1p6/1Npp1K2/2pPP1N1/5k2/p3p1pP/1B1R2p1/8

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Rd4#
    • 1...cxd5
      • 2.Sxd5#
    • 1...dxe5
      • 2.Bxe5#
  • Tries
    • 1.Rf2+?
      • 1...exf2
        • 2.Bc1#
      • 1...gxf2!
    • 1.dxc6?
      • threat
        • 2.Sd5#
      • 1...d5
        • 2.Sxd5#
      • 1...bxc6!
  • Keys
    • 1.Rc2!
      • threat
        • 2.Rc4#
      • 1...cxd5
        • 2.Sxd5#
      • 1...dxe5
        • 2.Bxe5#
      • 1...e2
        • 2.Bc1#
      • 1...c4
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD::R(B)
    • P(g);XP(D)::S(G),XP(g)
    • P(h);OGATE,XP(E)::B(A),XP(h)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • P(c);S_CUTP(d),XR(B)::B(A)
      • Refutation
        • P(d);XR(B)
    • Try
      • P(D);XP(g)
      • Threat
        • S(G)
      • Vars
        • P(h);::S(G),XP(h)
      • Refutation
        • P(i);XP(D)
  • Actual
    • R(B);
    • Threat
      • R(B)
    • Vars
      • P(g);XP(D)::S(G),XP(g)
      • P(h);OGATE,XP(E)::B(A),XP(h)
      • P(c);OGATEB::B(A)
      • P(f);::R(B),XP(f)
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