MESON Chess Problem Database

Problem Display
PID: 156660 (n7/3K3R/1p1N1N2/1PkP3R/7r/2P5/b7/8 w - - 0 1)

Placanico, Pietro L

Best Problems, 2007

n7/3K3R/1p1N1N2/1PkP3R/7r/2P5/b7/8

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Sfe4#
    • 1...Rh2
      • 2.Sfe4#
    • 1...Rh3
      • 2.Sfe4#
    • 1...Re4
      • 2.Sfxe4#
    • 1...Bxd5
      • 2.Rxd5#
  • Tries
    • 1.Ke7?
      • threat
        • 2.Sd7#
      • 1...Re4+
        • 2.Sfxe4#
      • 1...Rxh5!
  • Keys
    • 1.Ke6!
      • threat
        • 2.Sd7#
      • 1...Re4+
        • 2.Sfxe4#
      • 1...Bxd5+
        • 2.Rxd5#
      • 1...Sc7+
        • 2.Rxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD::S(F)
    • R(b);N_GUARD::S(F),XR(b)
    • B(a);OGATE,P_SPINB(a),XP(C)::R1(D),XB(a)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Threat
        • S(F)
      • Vars
        • R(b);CHECK,N_GUARD::S(F),XR(b)
      • Refutation
        • R(b);XR(D)
  • Actual
    • K(G);P_SPINP(C),S_FLIGHT
    • Threat
      • S(F)
    • Vars
      • R(b);CHECK,N_GUARD::S(F),XR(b)
      • B(a);CHECK,OGATE,P_SPINB(a),XP(C)::R1(D),XB(a)
      • S(e);CHECK,N_GUARD::R(H),XS(e)
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