MESON Chess Problem Database

Problem Display
PID: 259098 (r7/p7/B2B4/1R1K4/k1NpN3/b7/8/8 w - - 0 1)

Popa, Nicolae

Buletin Problemistic, 1989

r7/p7/B2B4/1R1K4/k1NpN3/b7/8/8

#2

6 + 5

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sc5#
      • 2.Rb4#
    • 1...Bb2
      • 2.Sxb2#
      • 2.Sc5#
      • 2.Rb4#
    • 1...Bb4
      • 2.Rxb4#
    • 1...Bc5
      • 2.Sxc5#
    • 1...d3
      • 2.Sc3#
  • Tries
    • 1.Bxa3?
      • threat
        • 2.Sc5#
        • 2.Rb4#
      • 1...Rb8
        • 2.Sc5#
      • 1...Rc8
        • 2.Rb4#
      • 1...Rd8+!
  • Keys
    • 1.Kxd4!
      • threat
        • 2.Sc3#
      • 1...Bb2+
        • 2.Sxb2#
      • 1...Bc5+
        • 2.Sxc5#
      • 1...Bb4
        • 2.Rxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::R1(C),XB(a)
    • B(a);N_GUARD::S(B),XB(a)
    • P(c);N_GUARD::S(B)
  • Tries
    • Try
      • B(F);XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(e);::S(B)
        • R(e);::R1(C)
      • Refutation
        • R(e);CHECK
  • Actual
    • K(D);P-FLIGHT,XP(c)
    • Threat
      • S(B)
    • Vars
      • B(a);CHECK,N_GUARD::S(A),XB(a)
      • B(a);CHECK,N_GUARD::S(B),XB(a)
      • B(a);N_GUARD::R1(C),XB(a)
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