MESON Chess Problem Database

Problem Display
PID: 205010 (8/Q7/1n6/2k5/3R4/pPpRK3/qp6/8 w - - 0 1)

Barry, Henry William

American Chess Bulletin, 1916

8/Q7/1n6/2k5/3R4/pPpRK3/qp6/8

#2

5 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rd5+?
      • 1...Kb4
        • 2.Qxb6#
      • 1...Kc6!
    • 1.Rd6?
      • threat
        • 2.Qxb6#
        • 2.Qa5#
      • 1...Kb4
        • 2.Qxb6#
      • 1...Kb5
        • 2.Qxb6#
      • 1...Qxb3!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Qxb6#
      • 1...Kxb4
        • 2.Qxb6#
      • 1...Kc6
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(e);N_SPINS(f),S_FLIGHT::QAR2(E),XS(f)
      • Refutation
        • K(e);N_SPINS(f),P-FLIGHT
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(e);N_SPINS(f),S_FLIGHT::QAR2(E),XS(f)
        • K(e);N_SPINS(f),P-FLIGHT::QAR1(E),XS(f)
      • Refutation
        • Q(a);XP(A)
  • Actual
    • R(D);
    • Threat
      • QAB1(E),XS(f)
    • Vars
      • K(e);N_SPINS(f),S_FLIGHT,XR(D)::QAR2(E),XS(f)
      • K(e);N_SPINS(f),P-FLIGHT::QAR1(E),XS(f)
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