MESON Chess Problem Database

Problem Display
PID: 31737 (4N1B1/4pP2/Pp6/1p1kP1K1/1P3P2/P2Nn3/1P2Q3/3RR1B1 w - - 0 1)

Rowland, Frideswide F (Mrs TB, nee Beechey)

Illustrated London News, 0000

4N1B1/4pP2/Pp6/1p1kP1K1/1P3P2/P2Nn3/1P2Q3/3RR1B1

#2

15 + 5

3467 Chess Blossoms 1883
4760 200 Classic Chess Puzzles 1993

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Sc1#
      • 2.Sc5#
    • 1...Kd4
      • 2.Sc5#
    • 1...Ke4
      • 2.Sf2#
    • 1...Ke6
      • 2.f8S#
  • Tries
    • 1.Sc5+?
      • 1...Sxd1
        • 2.Qe4#
      • 1...Kc6!
    • 1.Sc7+?
      • 1...Kc4
        • 2.Sc1#
        • 2.Sc5#
      • 1...Kd4
        • 2.Sc5#
      • 1...Ke4
        • 2.Sf2#
        • 2.Qxe3#
      • 1...Kc6!
  • Keys
    • 1.e6!
      • 1...Kc4
        • 2.Sc1#
        • 2.Sc5#
      • 1...Kd4
        • 2.Sc5#
      • 1...Ke4
        • 2.Sf2#
      • 1...Kc6
        • 2.Se5#
      • 1...Kxe6
        • 2.f8S#
      • 1...Sxd1
        • 2.Qe4#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sc2
        • 2.Qe4#
      • 1...Sg2
        • 2.Qe4#
      • 1...Sc4
        • 2.Qf3#
        • 2.Qg2#
        • 2.Qe4#
      • 1...Sg4
        • 2.Qe4#
      • 1...Sf5
        • 2.Qe4#

This is a version of 51068

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,P_SPINS(a)::R(A)+S(G)
    • K(c);P_SPINS(a),S_FLIGHT::S(G)
    • K(c);S_FLIGHT::P=S
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • S(a);OGATE,XR(A)::QAB1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(N);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINS(a)::R(A)+S(G)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • P(J);
    • Vars
      • K(c);P-FLIGHT,P_SPINS(a)::R(A)+S(G)
      • K(c);P_SPINS(a),S_FLIGHT::S(G)
      • K(c);S_FLIGHT::S(G)
      • K(c);P_SPINS(a),S_FLIGHT,XP(J)::P=S
      • S(a);OGATE,XR(A)::QAB1(E)
      • S(a);OGATE::QAB1(E)
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