MESON Chess Problem Database

Problem Display
PID: 56591 (6b1/2p1r3/1P1kNB1p/R6r/BPRp3p/3PN1nQ/2K1n2b/8 w - - 0 1)

Casa, Alex

Die Schwalbe, 2004

6b1/2p1r3/1P1kNB1p/R6r/BPRp3p/3PN1nQ/2K1n2b/8

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.bxc5#
    • 1...Rd5
      • 2.Rxd5#
    • 1...Re5
      • 2.Bxe5#
    • 1...Rd7
      • 2.Rc6#
  • Tries
    • 1.Rxd4+?
      • 1...Rd5
        • 2.Sc4#
        • 2.Rdxd5#
        • 2.Raxd5#
      • 1...Sxd4+!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Rc6#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Re6
        • 2.Rd5#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Be6
        • 2.Be5#
      • 1...Sf5
        • 2.Sxf5#
      • 1...c5
        • 2.bxc5#
      • 1...c6
        • 2.Rxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 4
  • Sets
    • R(f);OGATE,P_PINR(G)::P(F),XR(f)
    • R(f);N_GUARD::R1(H),XR(f)
    • R(f);N_GUARD::B(K),XR(f)
    • R(j);SBLOCK::R1(G)
  • Tries
    • Try
      • R(G);CHECK,XP(d)
      • Refutation
        • S(a);CHECK,XR(G)
  • Actual
    • S(J);
    • Threat
      • R1(G)
    • Vars
      • B(k);XR(G)::S(C),XB(k)
      • R(j);S_CUTB(k)::R1(H)
      • B(k);N_GUARD::R1(H),XB(k)
      • B(k);S_CUTR(j)::B(K)
      • S(c);N_GUARD::S(C),XS(c)
      • P(i);OGATE::P(F),XP(i)
      • P(i);::R1(G),XP(i)
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Developed and maintained by Brian Stephenson.
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