MESON Chess Problem Database

Problem Display
PID: 160606 (7n/5pK1/6p1/4p2k/5R1N/5N1P/8/8 w - - 0 1)

Russ, Colin Albert Harry

British Chess Magazine, 2014

7n/5pK1/6p1/4p2k/5R1N/5N1P/8/8

#2

5 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Sg2?
      • threat
        • 2.Rh4#
      • 1...exf4
        • 2.Sxf4#
      • 1...g5!
    • 1.Sf5?
      • threat
        • 2.Sg3#
        • 2.Rh4#
      • 1...gxf5
        • 2.Rh4#
        • 2.Rxf5#
      • 1...g5
        • 2.Sg3#
      • 1...exf4!
    • 1.Rg4?
      • threat
        • 2.Rg5#
      • 1...g5
        • 2.Rxg5#
      • 1...f6!
    • 1.Rf5+?
      • 1...g5
        • 2.Rxg5#
      • 1...gxf5!
    • 1.Rf6?
      • 1...g5
        • 2.Rh6#
      • 1...e4!
  • Keys
    • 1.Sxg6!
      • threat
        • 2.Rh4#
        • 2.Rf5#
      • 1...Sxg6
        • 2.Rf5#
      • 1...exf4
        • 2.Sxf4#
      • 1...fxg6
        • 2.Rh4#
      • 1...f5
        • 2.Rh4#
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • R1(C)
      • Vars
        • P(a);XR(C)::S(D),XP(a)
      • Refutation
        • P(c);
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::S(D)
      • Refutation
        • P(a);XR(C)
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • P(c);::R1(C),XP(c)
      • Refutation
        • P(d);
    • Try
      • R(C);CHECK
      • Vars
        • P(c);P_SPINP(c)::R1(C),XP(c)
      • Refutation
        • P(c);XR(C)
    • Try
      • R(C);
      • Vars
        • P(c);OGATE::R1(C)
      • Refutation
        • P(a);
  • Actual
    • S(D);XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • S(e);XS(D)::R(C)
      • P(a);XR(C)::S(D),XP(a)
      • P(d);XS(D)::R1(C)
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