MESON Chess Problem Database

Problem Display
PID: 208775 (8/8/1b6/1RP2np1/k2N1r1n/p2b1pp1/P2B1P1P/1BK2RNQ w - - 0 1)

Barrier, ?

Dubuque Chess Journal, 1876

8/8/1b6/1RP2np1/k2N1r1n/p2b1pp1/P2B1P1P/1BK2RNQ

#2

12 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf1
      • 2.Bc2#
    • 1...Bc2
      • 2.Bxc2#
    • 1...Be2
      • 2.Bc2#
    • 1...Bxb5
      • 2.Bc2#
    • 1...Ba5
      • 2.Rxa5#
    • 1...Bxc5
      • 2.Ra5#
    • 1...Ba7
      • 2.Ra5#
  • Tries
    • 1.Sge2?
      • threat
        • 2.Sc3#
      • 1...Bxe2
        • 2.Bc2#
      • 1...Bxb5
        • 2.Bc2#
      • 1...Ba5
        • 2.Rxa5#
      • 1...fxe2!
  • Keys
    • 1.cxb6!
      • threat
        • 2.Ra5#
      • 1...Bxb5
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • B(b);N_GUARD,XR(C)::B(A)
    • B(b);N_GUARD::B(A),XB(b)
    • B(b);N_GUARD::B(A)
    • B(b);N_GUARD,XR(K)::B(A)
    • B(j);N_GUARD::R1(K),XB(j)
    • B(j);N_GUARD,XP(L)::R1(K)
    • B(j);N_GUARD::R1(K)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • B(b);N_GUARD,XS(D)::B(A)
        • B(b);N_GUARD,XR(K)::B(A)
        • B(j);N_GUARD::R1(K),XB(j)
      • Refutation
        • P(c);XS(D)
  • Actual
    • P(L);XB(j)
    • Threat
      • R1(K)
    • Vars
      • B(b);N_GUARD,XR(K)::B(A)
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