MESON Chess Problem Database

Problem Display
PID: 2751 (1Q6/6R1/4p3/p1B1p3/p3k3/P7/2R5/4K3 w - - 0 1)

Thursby, John Ormerod Scarlett

Burnley Express, 1881

1Q6/6R1/4p3/p1B1p3/p3k3/P7/2R5/4K3

#2

6 + 5

3357 75 Chess Problems 1883

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qb7#
      • 2.Qa8#
  • Tries
    • 1.Rf7?
      • 1...Kd5
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kd3!
    • 1.Qxe5+?
      • 1...Kd3
        • 2.Rc3#
        • 2.Qe2#
      • 1...Kf3
        • 2.Rf2#
        • 2.Rc3#
        • 2.Rg3#
        • 2.Qe3#
      • 1...Kxe5!
    • 1.Qb4+?
      • 1...Kd3
        • 2.Rd2#
        • 2.Rc3#
        • 2.Qc4#
      • 1...Kf3
        • 2.Rf2#
        • 2.Rc3#
        • 2.Qg4#
      • 1...Kd5
        • 2.Qb7#
      • 1...Kf5
        • 2.Rf2#
      • 1...axb4!
    • 1.Qb7+?
      • 1...Kf4
        • 2.Rf2#
      • 1...Kf5
        • 2.Rf2#
        • 2.Qf3#
      • 1...Kd3!
    • 1.Qa8+?
      • 1...Kf4
        • 2.Rf2#
      • 1...Kf5
        • 2.Rf2#
        • 2.Qf3#
      • 1...Kd3!
    • 1.Qf8?
      • 1...Kd5
        • 2.Qa8#
      • 1...Kd3!
  • Keys
    • 1.Qb1!
      • 1...Kd3
        • 2.Rc1#
      • 1...Kf3
        • 2.Rf2#
      • 1...Kf4
        • 2.Rf2#
      • 1...Kd5
        • 2.Qb7#
      • 1...Kf5
        • 2.Rf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK,XP(d)
      • Refutation
        • K(b);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(F)
        • K(b);S_FLIGHT::R(B)
      • Refutation
        • P(c);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(b);S_FLIGHT::QAB(F)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(b);S_FLIGHT::QAB(F)+R(B)
      • K(b);S_FLIGHT::R1(B)
      • K(b);P-FLIGHT::R(B)
      • K(b);S_FLIGHT::QAB(F)
      • K(b);S_FLIGHT::QAB(F)+R(B),DCHECK
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