MESON Chess Problem Database

Problem Display
PID: 276584 (2R5/2N5/P2p4/r3p3/1k3n2/p4N2/p1BP1B1p/K4Q2 w - - 0 1)

Hirschenson, Aaron

Retter, Yosef

1/2 Comm., Pat a Mat 04. TT, 2006

2R5/2N5/P2p4/r3p3/1k3n2/p4N2/p1BP1B1p/K4Q2

#2

9 + 8

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Qb5#
    • 1...Rb5
      • 2.Qxb5#
    • 1...Rxa6
      • 2.Qb5#
  • Tries
    • 1.Sd5+?
      • 1...Sxd5
        • 2.Qc4#
      • 1...Rxd5!
  • Keys
    • 1.Rb8+!
      • 1...Rb5
        • 2.Rxb5#
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD::QAR1(B)
    • R(f);N_GUARD::QAR1(B),XR(f)
    • R(f);N_GUARD,XP(G)::QAR1(B)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • S(e);XS(H)::QAR1(B)
      • Refutation
        • R(f);XS(H)
  • Actual
    • R(I);CHECK
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