MESON Chess Problem Database

Problem Display
PID: 190261 (8/8/8/8/pp3p2/pk4rR/2RPP3/1NK2B2 w - - 0 1)

Tikkanen, Tapani

Suomen Shakki, 1983

8/8/8/8/pp3p2/pk4rR/2RPP3/1NK2B2

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Rxd3#
    • 1...Rf3
      • 2.Rxf3#
  • Tries
    • 1.Bg2?
      • threat
        • 2.Bd5#
      • 1...Rf3
        • 2.Rxf3#
      • 1...f3!
    • 1.Rxg3+?
      • 1...f3
        • 2.Rxf3#
      • 1...fxg3!
    • 1.e4?
      • threat
        • 2.Bc4#
      • 1...Rd3
        • 2.Rxd3#
      • 1...Rc3!
  • Keys
    • 1.d3!
      • threat
        • 2.Sd2#
      • 1...a2
        • 2.Rb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(c);OGATE::R(G),XR(c)
  • Tries
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • R(c);OGATE::R(G),XR(c)
      • Refutation
        • P(f);N_SPINR(c)
    • Try
      • R(G);CHECK,XR(c)
      • Vars
        • P(f);P_SPINP(f)::R(G),XP(f)
      • Refutation
        • P(f);XR(G)
    • Try
      • P(F);
      • Threat
        • B(C)
      • Vars
        • R(c);OGATE::R(G),XR(c)
      • Refutation
        • R(c);P_PINR(D)
  • Actual
    • P(E);N_PINR(c)
    • Threat
      • S(A)
    • Vars
      • P(a);N_GUARD::R1(D)
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