MESON Chess Problem Database

Problem Display
PID: 114818 (4R1b1/5p2/8/1K4p1/1BPk4/8/2P2R2/5n2 w - - 0 1)

Andrade, Barry Jack da Costa

Catholic Times, 1958

4R1b1/5p2/8/1K4p1/1BPk4/8/2P2R2/5n2

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Rxd2#
    • 1...Sh2
      • 2.Rd2#
    • 1...Se3
      • 2.Rd2#
    • 1...Sg3
      • 2.Rd2#
    • 1...g4
      • 2.Rf4#
  • Tries
    • 1.Rfe2?
      • threat
        • 2.R2e4#
        • 2.R8e4#
        • 2.Rd8#
      • 1...Bh7
        • 2.Rd8#
      • 1...Sd2
        • 2.Rxd2#
        • 2.Rd8#
      • 1...Se3
        • 2.Rd2#
      • 1...Sg3
        • 2.Rd2#
        • 2.Rd8#
      • 1...f6
        • 2.R2e4#
        • 2.R8e4#
      • 1...f5!
    • 1.Rf3?
      • threat
        • 2.Bc3#
        • 2.Bc5#
        • 2.Rd3#
        • 2.c3#
      • 1...Bh7
        • 2.Bc3#
        • 2.Bc5#
        • 2.c3#
      • 1...Se3!
  • Keys
    • 1.Be7!
      • threat
        • 2.Bf6#
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke3
        • 2.Bc5#
      • 1...Ke4
        • 2.Bc5#
        • 2.Bf6#
      • 1...Ke5
        • 2.Bc5#
      • 1...f6
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(a);N_GUARD::R(B),XS(a)
    • S(a);N_GUARD::R(B)
    • P(c);N_GUARD::R(B)
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(3)
      • Vars
        • B(e);::R(F)
        • S(a);N_GUARD::R(B)
      • Refutation
        • P(d);
    • Try
      • R(B);
      • Threat
        • DUALS(4)
      • Refutation
        • S(a);
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • K(b);S_FLIGHT::B(C)
      • K(b);S_FLIGHT::R(F)+B(C),DCHECK
      • K(b);S_FLIGHT::R(F)+B(C)
      • P(d);::B(C),XP(d)
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