MESON Chess Problem Database

Problem Display
PID: 11018 (4r3/8/2r1P2Q/Rb1k1N2/1p6/3N1P2/qp6/3R1K2 w - - 0 1)

Boorer, PA

Chess, 1936

4r3/8/2r1P2Q/Rb1k1N2/1p6/3N1P2/qp6/3R1K2

#2

8 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Rxb5+?
      • 1...Rc5
        • 2.Rxc5#
      • 1...Kc4!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Se5#
      • 1...Rcxe6
        • 2.Qc5#
      • 1...Rexe6
        • 2.Qd4#
      • 1...Qc4
        • 2.Qe5#
      • 1...Rc4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK,N_SPINS(C),XB(d)
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::R1(E),XR(f)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • K(e);N_PINS(C),N_SPINB(d),S_FLIGHT::S(C)
      • R(f);N_GUARD,SBLOCK,XP(G)::QAR1(H)
      • R(g);SBLOCK,XP(G)::QAR1(H)
      • Q(a);SBLOCK::QAR1(H)
      • R(f);N_PINS(C),SBLOCK::R(A)+S(C),DCHECK,XP(c)
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