MESON Chess Problem Database

Problem Display
PID: 152592 (8/Q4N2/P1PP4/pk6/8/rpBN1B2/rp6/bK6 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1941

8/Q4N2/P1PP4/pk6/8/rpBN1B2/rp6/bK6

#2

9 + 7

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sfe5?
      • 1...Ra4
        • 2.Qb7#
      • 1...a4
        • 2.Qb7#
      • 1...Ka4!
    • 1.Bd5?
      • 1...Ra4
        • 2.Qb7#
      • 1...a4
        • 2.Qb7#
      • 1...Ka4!
    • 1.Qc5+?
      • 1...Ka4
        • 2.Qc4#
        • 2.Qxa5#
      • 1...Kxa6!
    • 1.Qb8+?
      • 1...Ka4
        • 2.Sc5#
      • 1...Kxa6
        • 2.Sc5#
        • 2.Qb7#
      • 1...Kc4!
    • 1.Qb7+?
      • 1...Ka4
        • 2.Sc5#
      • 1...Kc4!
  • Keys
    • 1.Be2!
      • 1...Ka4
        • 2.Sc5#
      • 1...Kc4
        • 2.Qc5#
      • 1...Kxc6
        • 2.Qb7#
      • 1...Ra4
        • 2.Sb4#
      • 1...a4
        • 2.Sde5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(I);
      • Vars
        • R(d);SBLOCK::QAR2(H)
        • P(f);SBLOCK::QAR2(H)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • R(d);SBLOCK::QAR2(H)
        • P(f);SBLOCK::QAR2(H)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • K(g);S_FLIGHT,XP(E)
    • Try
      • Q(H);CHECK
      • Vars
        • K(g);S_FLIGHT::S(C)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(g);S_FLIGHT::S(C)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(g);S_FLIGHT::S(C)
      • K(g);S_FLIGHT::QAR1(H)
      • K(g);S_FLIGHT,XP(F)::QAB1(H)
      • R(d);SBLOCK::B(D)+S(C)
      • P(f);SBLOCK::B(D)+S(C)
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