MESON Chess Problem Database

Problem Display
PID: 18339 (8/qn6/p1N5/2NR1p1r/P1k2BQ1/5B1R/8/4K3 w - - 0 1)

Boswell, Edward

Holladay, Edgar Dinwiddie

Comm., Chess Life, 1955-1956

8/qn6/p1N5/2NR1p1r/P1k2BQ1/5B1R/8/4K3

#2

9 + 6

3976 FIDE Album (1956-1958) 1961
6232 Holladay Chess Problems 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Bd2+?
      • 1...f4
        • 2.Qxf4#
      • 1...fxg4!
    • 1.Be5+?
      • 1...f4
        • 2.Qxf4#
      • 1...fxg4!
    • 1.Rd1?
      • threat
        • 2.Rc1#
      • 1...Kxc5
        • 2.Be3#
      • 1...Qxc5
        • 2.Be2#
      • 1...Sxc5
        • 2.Bd5#
      • 1...Kc3!
    • 1.Qg2?
      • threat
        • 2.Be2#
        • 2.Qc2#
      • 1...Rxh3
        • 2.Qc2#
      • 1...Sxc5
        • 2.Qc2#
      • 1...Kc3!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Rc2#
      • 1...Kc3
        • 2.Be5#
      • 1...Kxc5
        • 2.Be3#
      • 1...Qxc5
        • 2.Be2#
      • 1...Sxc5
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAR(F),XP(b)
      • Refutation
        • P(b);XQ(F)
    • Try
      • B(E);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAR(F),XP(b)
      • Refutation
        • P(b);XQ(F)
    • Try
      • R(H);
      • Threat
        • R(H)
      • Vars
        • K(a);P-FLIGHT,XS(G)::B(E)
        • Q(e);SBLOCK,XS(G)::B(B)
        • S(f);SBLOCK,XS(G)::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XR(C)::QAR2(F)
        • S(f);XS(G)::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(H);
    • Threat
      • R(H)
    • Vars
      • K(a);P-FLIGHT::B(E)
      • K(a);P-FLIGHT,XS(G)::B(E)
      • Q(e);SBLOCK,XS(G)::B(B)
      • S(f);SBLOCK,XS(G)::B(B)
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