MESON Chess Problem Database

Problem Display
PID: 105573 (8/5KN1/2N2p1B/1R1n4/4k3/6R1/2P5/3r1r2 w - - 0 1)

Trump, Raymond

West Virginia Chess Bulletin, 1950

8/5KN1/2N2p1B/1R1n4/4k3/6R1/2P5/3r1r2

#2

7 + 5

70 American Chess Problemist 1950
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.cxd3#
    • 1...Sc3
      • 2.Re3#
    • 1...Se3
      • 2.Rxe3#
    • 1...Sb4
      • 2.Re3#
    • 1...Sb6
      • 2.Re3#
    • 1...Sc7
      • 2.Re3#
    • 1...Se7
      • 2.Re3#
  • Tries
    • 1.Rb4+?
      • 1...Rd4
        • 2.Rxd4#
      • 1...Sxb4!
  • Keys
    • 1.Se8!
      • threat
        • 2.Sd6#
      • 1...Kf5
        • 2.Sd6#
      • 1...Sc3
        • 2.Re3#
      • 1...Se3
        • 2.Rxe3#
      • 1...Sb4
        • 2.Re3#
      • 1...Sf4
        • 2.Sxf6#
      • 1...Sb6
        • 2.Re3#
      • 1...Sc7
        • 2.Re3#
      • 1...Se7
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE::P(A),XR(a)
    • S(d);N_GUARD::R1(B)
    • S(d);N_GUARD::R1(B),XS(d)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::R1(C),XR(a)
      • Refutation
        • S(d);XR(C)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(c);P_SPINS(d),S_FLIGHT::S(G)
      • S(d);N_GUARD::R1(B)
      • S(d);N_GUARD::R1(B),XS(d)
      • S(d);N_GUARD,S_CUTR(b)::S(G),XP(e)
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