MESON Chess Problem Database

Problem Display
PID: 142322 (6b1/8/3P1p2/R1N1k3/6R1/Bn6/BP6/3Kb2Q w - - 0 1)

Anonymous

St. James' Budget, 1894

(First published on Fri Apr 13 1894)

6b1/8/3P1p2/R1N1k3/6R1/Bn6/BP6/3Kb2Q

#2

9 + 5

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qe4#
      • 2.Qh5#
    • 1...Be6
      • 2.Sd3#
      • 2.Sd7#
    • 1...Sa1
      • 2.Sd3#
      • 2.Sd7#
    • 1...Sc1
      • 2.Sd3#
      • 2.Sd7#
    • 1...Sd2
      • 2.Sd3#
      • 2.Se6#
      • 2.Sd7#
    • 1...Sd4
      • 2.Sd3#
      • 2.Sd7#
  • Tries
    • 1.Sxb3+?
      • 1...Bxa5
        • 2.Qe4#
      • 1...Bd5
        • 2.Qe4#
        • 2.Qxd5#
      • 1...Ke6!
    • 1.Se6+?
      • 1...Bxa5
        • 2.Qe4#
      • 1...Sxa5
        • 2.Qe4#
        • 2.Qd5#
      • 1...Sc5
        • 2.Qd5#
      • 1...Kxe6!
    • 1.Sb7+?
      • 1...Bxa5
        • 2.Qe4#
      • 1...Bd5
        • 2.Qe4#
        • 2.Qxd5#
      • 1...Sxa5
        • 2.Qe4#
      • 1...Sc5
        • 2.Qe4#
      • 1...Ke6!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qe4#
      • 1...Kxd4
        • 2.Qe4#
      • 1...Kf5
        • 2.Qh5#
      • 1...Sxd4
        • 2.Sd3#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bh7
        • 2.Qd5#
      • 1...Sd2
        • 2.Se6#
      • 1...f5
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);CHECK,XS(b)
      • Vars
        • B(a);XR(G)::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • B(a);XR(G)::QAR1(B)
        • S(b);P_SPINS(b)::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(b),XS(H)
    • Try
      • S(H);CHECK
      • Vars
        • B(a);XR(G)::QAR1(B)
        • S(b);XR(G)::QAR1(B)
        • S(b);P_SPINS(b)::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(b)
  • Actual
    • R(F);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);S_FLIGHT,XR(F)::QAR1(B)
      • K(c);P-FLIGHT::QAR2(B)
      • S(b);SBLOCK,XR(F)::R(G)+S(H),DCHECK
      • B(e);N_GUARD::QAR1(B),XB(e)
      • B(e);N_GUARD::QAR1(B)
      • S(b);N_GUARD,S_CUTB(a)::R(G)+S(H)
      • P(d);OGATEB,SBLOCK::QAB(B)
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