MESON Chess Problem Database

Problem Display
PID: 143238 (7B/R7/4p3/3prP2/4k3/Q4p2/5K2/8 w - - 0 1)

Fellows, Arthur G

The Field, 1893

(First published on Sat Apr 22 1893)

7B/R7/4p3/3prP2/4k3/Q4p2/5K2/8

#2

5 + 5

15 British Chess Magazine 1893
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Ra4#
    • 1...Rxf5
      • 2.Qe3#
    • 1...d4
      • 2.Qxf3#
    • 1...exf5
      • 2.Qe3#
  • Tries
    • 1.Bf6?
      • 1...Kd4
        • 2.Ra4#
      • 1...Kf4
        • 2.Qxf3#
      • 1...Rxf5
        • 2.Qe3#
      • 1...exf5
        • 2.Qe3#
      • 1...d4
        • 2.Qxf3#
      • 1...Kxf5!
    • 1.Ra4+?
      • 1...d4
        • 2.Qxf3#
      • 1...Kxf5!
  • Keys
    • 1.Rg7!
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf4
        • 2.Qxf3#
      • 1...Kxf5
        • 2.Qxf3#
      • 1...Rxf5
        • 2.Qe3#
      • 1...exf5
        • 2.Qe3#
      • 1...d4
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,P_SPINR(d)::R(D)
    • R(d);SBLOCK,XP(C)::QAR1(B)
    • P(c);SBLOCK::QAB1(B),XP(a)
    • P(e);SBLOCK,XP(C)::QAR1(B)
  • Tries
    • Try
      • B(E);
      • Vars
        • K(b);P-FLIGHT,P_SPINR(d)::R(D)
        • K(b);P-FLIGHT::QAR1(B),XP(a)
        • R(d);SBLOCK,XP(C)::QAR1(B)
        • P(e);SBLOCK,XP(C)::QAR1(B)
        • P(c);SBLOCK::QAB1(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XP(C)
    • Try
      • R(D);CHECK
      • Vars
        • P(c);P_SPINP(c)::QAB1(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XP(C)
  • Actual
    • R(D);
    • Vars
      • K(b);P-FLIGHT::R(D)
      • K(b);P-FLIGHT::QAR1(B),XP(a)
      • K(b);S_FLIGHT,XP(C)::QAR2(B),XP(a)
      • R(d);SBLOCK,XP(C)::QAR1(B)
      • P(e);SBLOCK,XP(C)::QAR1(B)
      • P(c);SBLOCK::QAB1(B),XP(a)
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