MESON Chess Problem Database

Problem Display
PID: 11364 (8/1pK4B/3Bp3/3k4/1R1N3p/2p4r/1n6/3rb2b w - - 0 1)

Thomas, WG

Chess, 1938

8/1pK4B/3Bp3/3k4/1R1N3p/2p4r/1n6/3rb2b

#2

5 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3?
      • threat
        • 2.Be4#
      • 1...e5
        • 2.Bg8#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Sc4
        • 2.Rb5#
      • 1...Bxf3!
    • 1.Sf5?
      • threat
        • 2.Se7#
      • 1...exf5
        • 2.Bg8#
      • 1...e5
        • 2.Bg8#
      • 1...Sc4!
    • 1.Sc6?
      • threat
        • 2.Se7#
      • 1...e5
        • 2.Bg8#
      • 1...Sc4
        • 2.Rb5#
      • 1...bxc6!
  • Keys
    • 1.Se2!
      • threat
        • 2.Sf4#
      • 1...e5
        • 2.Bg8#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Rf3
        • 2.Be4#
      • 1...Bd2
        • 2.Rd4#
      • 1...Bg3
        • 2.Sxc3#
      • 1...Sd3
        • 2.Rd4#
      • 1...Sc4
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • B(E)
      • Vars
        • P(i);OGATEB::B(E)
        • R(a);N_GUARD::R1(A),XR(a)
        • S(d);SBLOCK::R(A)
      • Refutation
        • B(c);XS(B)
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • P(i);OGATEB,XS(B)::B(E)
        • P(i);OGATEB::B(E)
      • Refutation
        • S(d);
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • P(i);OGATEB::B(E)
        • S(d);SBLOCK::R(A)
      • Refutation
        • P(j);XS(B)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • P(i);OGATEB::B(E)
      • R(a);N_GUARD::R1(A),XR(a)
      • R(f);S_CUTB(c)::B(E)
      • B(b);S_CUTR(a)::R1(A)
      • B(b);N_GUARD,P_PINB(C),S_CUTR(f)::S(B),XP(e)
      • S(d);S_CUTR(a)::R1(A)
      • S(d);SBLOCK::R(A)
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