MESON Chess Problem Database

Problem Display
PID: 772 (4rQB1/6n1/3p4/5b2/N2R4/1P6/2k5/KR6 w - - 0 1)

Montgomerie, John

British Chess Magazine, 1955

4rQB1/6n1/3p4/5b2/N2R4/1P6/2k5/KR6

#2

7 + 5

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Qc8#
    • 1...Be4
      • 2.Qf2#
    • 1...Be6
      • 2.Qf2#
    • 1...Se6
      • 2.Qxf5#
    • 1...d5
      • 2.Qc5#
  • Tries
    • 1.Qxd6?
      • threat
        • 2.Rd2#
        • 2.Rc4#
        • 2.Qc5#
        • 2.Qc7#
        • 2.Qc6#
      • 1...Re2
        • 2.Rc4#
        • 2.Qc5#
        • 2.Qc7#
        • 2.Qc6#
      • 1...Re3
        • 2.Rd2#
      • 1...Re4
        • 2.Rd2#
        • 2.Qc5#
        • 2.Qc7#
        • 2.Qc6#
      • 1...Re5
        • 2.Rd2#
        • 2.Rc4#
      • 1...Re6
        • 2.Rd2#
        • 2.Rc4#
        • 2.Qc5#
      • 1...Re7
        • 2.Rd2#
        • 2.Rc4#
        • 2.Qc5#
        • 2.Qc6#
      • 1...Rc8
        • 2.Rd2#
        • 2.Qh2#
      • 1...Be4
        • 2.Rd2#
        • 2.Rc4#
        • 2.Qc5#
      • 1...Be6
        • 2.Rd2#
        • 2.Qh2#
      • 1...Bd7
        • 2.Rd2#
        • 2.Rc4#
        • 2.Qc5#
      • 1...Se6
        • 2.Rd2#
        • 2.Rc4#
        • 2.Qh2#
      • 1...Bd3!
    • 1.Qxf5+?
      • 1...Re4
        • 2.Qxe4#
        • 2.Qc8#
      • 1...Sxf5!
  • Keys
    • 1.Rdd1!
      • threat
        • 2.Rbc1#
      • 1...Re6
        • 2.Qc8#
      • 1...Be6
        • 2.Qf2#
      • 1...Se6
        • 2.Qxf5#
      • 1...d5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(e);OGATE::QAR(F)
    • B(b);OGATE::QAR(F)
    • S(d);N_GUARD,S_CUTR(e)::QAB(F),XB(b)
    • P(c);OGATE::QAR(F)
  • Tries
    • Try
      • Q(F);XP(c)
      • Threat
        • DUALS(5)
      • Vars
        • R(e);::R1(E)
      • Refutation
        • B(b);
    • Try
      • Q(F);CHECK,XB(b)
      • Refutation
        • S(d);XQ(F)
  • Actual
    • R(E);
    • Threat
      • R1(B)
    • Vars
      • R(e);OGATE::QAR(F)
      • B(b);OGATE::QAR(F)
      • S(d);N_GUARD,S_CUTR(e)::QAB(F),XB(b)
      • P(c);OGATE::QAR(F)
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