MESON Chess Problem Database

Problem Display
PID: 71136 (6QB/r3P1RB/8/6P1/4N3/p3P3/1k1p4/r1bK4 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1951

6QB/r3P1RB/8/6P1/4N3/p3P3/1k1p4/r1bK4

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Rg6#
  • Tries
    • 1.Sxd2?
      • threat
        • 2.Rg6#
        • 2.Qb3#
      • 1...Kc3
        • 2.Qb3#
      • 1...Rxe7
        • 2.Rxe7#
        • 2.Qb3#
      • 1...Rb1
        • 2.Rg6#
      • 1...Ra2
        • 2.Rg6#
        • 2.Rf7#
      • 1...a2
        • 2.Qb3#
      • 1...Ra4
        • 2.Qb3#
      • 1...Ra5
        • 2.Qb3#
      • 1...Ra6
        • 2.Qb3#
      • 1...Rb7
        • 2.Rg6#
      • 1...Rc7
        • 2.Qb3#
      • 1...Rd7
        • 2.Qb3#
      • 1...Bxd2+!
    • 1.Qb8+?
      • 1...Ka2
        • 2.Sc3#
        • 2.Bg8#
      • 1...Rb7!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qb3#
      • 1...Kc3
        • 2.Qb3#
      • 1...Rb1
        • 2.Rg6#
      • 1...Ra2
        • 2.Rf7#
      • 1...Rb7
        • 2.Sa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::B(I)+R(F)
  • Tries
    • Try
      • S(C);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT::QAR1(H)
        • R(a);::B(I)+R(F)
        • P(e);::QAR1(H)
        • R(f);::QAR1(H)
        • R(f);::B(I)+R(F)
        • R(f);P_PINS(C)::QAR1(H)
      • Refutation
        • B(b);CHECK,XS(C)
    • Try
      • Q(H);CHECK
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • S(C);
    • Threat
      • QAR1(H)
    • Vars
      • K(c);S_FLIGHT::QAR1(H)
      • R(a);SBLOCK::B(I)+R(F)
      • R(f);N_GUARD::S(C)
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