MESON Chess Problem Database

Problem Display
PID: 201788 (B5b1/1r6/2r5/1Rp2R2/4k1P1/1pKN2p1/3P3b/8 w - - 0 1)

Avram, Constantine

Revista Romana de Sah, 1976

B5b1/1r6/2r5/1Rp2R2/4k1P1/1pKN2p1/3P3b/8

#2

7 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Sxc5#
    • 1...Rcb6
      • 2.Sxc5#
    • 1...Rd6
      • 2.Sxc5#
    • 1...Re6
      • 2.Sxc5#
    • 1...Rf6
      • 2.Sxc5#
    • 1...Rg6
      • 2.Sxc5#
    • 1...Rh6
      • 2.Sxc5#
    • 1...Rbb6
      • 2.Sxc5#
    • 1...Ra7
      • 2.Sxc5#
    • 1...Rc7
      • 2.Sxc5#
    • 1...Rd7
      • 2.Sxc5#
    • 1...Re7
      • 2.Sxc5#
    • 1...Rf7
      • 2.Sxc5#
      • 2.Bxc6#
    • 1...Rg7
      • 2.Sxc5#
    • 1...Rh7
      • 2.Sxc5#
    • 1...Rb8
      • 2.Sxc5#
    • 1...Bd5
      • 2.Rf4#
    • 1...g2
      • 2.Sf2#
    • 1...c4
      • 2.Rbe5#
      • 2.Rf4#
  • Tries
    • 1.Bxb7?
      • threat
        • 2.Sxc5#
      • 1...Bd5
        • 2.Rf4#
      • 1...c4
        • 2.Sc5#
        • 2.Rbe5#
        • 2.Rf4#
      • 1...Bg1!
  • Keys
    • 1.Rbxc5!
      • threat
        • 2.Rf4#
      • 1...Rxc5+
        • 2.Sxc5#
      • 1...Rf6
        • 2.Rce5#
      • 1...Rf7
        • 2.Bxc6#
        • 2.Rc4#
      • 1...g2
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 15
  • Sets
    • R(f);N_GUARD,P_SPINR(g)::S(C),XP(e)
    • R(g);P_SPINR(f)::S(C),XP(e)
    • B(h);SBLOCK::R1(F)
    • P(c);N_GUARD::S(C)
  • Tries
    • Try
      • B(G);P_PINR(f),XR(g)
      • Threat
        • S(C),XP(e)
      • Vars
        • B(h);N_SPINR(f),SBLOCK::R1(F)
      • Refutation
        • B(a);
  • Actual
    • R(E);P_SPINR(E),XP(e)
    • Threat
      • R1(F)
    • Vars
      • R(f);CHECK,P_SPINR(g),XR(E)::S(C),XR(f)
      • R(f);N_PINR(E),P_SPINR(g)::R1(E)
      • P(c);N_GUARD::S(C)
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