MESON Chess Problem Database

Problem Display
PID: 142307 (1b6/p1RB2K1/P2k4/8/3Nn1p1/1R2Q1P1/8/8 w - - 0 1)

Anonymous

St. James' Budget, 1893

(First published on Fri Oct 27 1893)

1b6/p1RB2K1/P2k4/8/3Nn1p1/1R2Q1P1/8/8

#2

8 + 5

14868 Pirnie Collection 2011
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke5
        • 2.Rc5#
        • 2.Qd4#
      • 1...Ke7!
    • 1.Sf5+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke5
        • 2.Rb5#
        • 2.Rc5#
        • 2.Qd4#
      • 1...Kxc7!
    • 1.Sc6?
      • 1...Kd5
        • 2.Qd4#
      • 1...Bxc7
        • 2.Rd3#
        • 2.Qd4#
      • 1...Sxg3
        • 2.Qe5#
      • 1...Sd2
        • 2.Qe5#
      • 1...Sf2
        • 2.Qe5#
      • 1...Sc3
        • 2.Qe5#
      • 1...Sc5
        • 2.Qe5#
      • 1...Sg5
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe5#
      • 1...Kxc7!
    • 1.Qf4+?
      • 1...Ke7
        • 2.Sc6#
        • 2.Qf8#
      • 1...Kd5!
  • Keys
    • 1.Rd3!
      • 1...Kd5
        • 2.Sf3#
      • 1...Ke5
        • 2.Sc6#
      • 1...Kxc7
        • 2.Se6#
      • 1...Ke7
        • 2.Sc6#
      • 1...Bxc7
        • 2.Sc6#
      • 1...Sxg3
        • 2.Sb5#
      • 1...Sd2
        • 2.Sb5#
      • 1...Sf2
        • 2.Sb5#
      • 1...Sc3
        • 2.Sb5#
      • 1...Sc5
        • 2.Sb5#
      • 1...Sg5
        • 2.Sb5#
      • 1...Sf6
        • 2.Sb5#

Anticipated by 142304(0000)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(F)
    • Try
      • S(D);
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
        • S(a);OGATE,XP(C)::QAB1(B)
        • S(a);OGATE::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(F)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(c);P-FLIGHT::R(A)+S(D)
      • K(c);P_SPINS(a),S_FLIGHT::S(D)
      • K(c);S_FLIGHT,XR(F)::S(D)
      • B(e);SBLOCK,XR(F)::R(A)+S(D)
      • S(a);XP(C)::R(A)+S(D),DCHECK
      • S(a);::R(A)+S(D),DCHECK
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