MESON Chess Problem Database

Problem Display
PID: 53898 (1nn2N2/8/1P6/2k5/P2R1P2/2K2B2/8/2B5 w - - 0 1)

Silver, Charles E

The Chess Review, 1935

1nn2N2/8/1P6/2k5/P2R1P2/2K2B2/8/2B5

#2

8 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sa6
      • 2.Sd7#
    • 1...Sc6
      • 2.Sd7#
    • 1...Sd7
      • 2.Sxd7#
    • 1...Sxb6
      • 2.Se6#
      • 2.Ba3#
  • Tries
    • 1.Be3?
      • threat
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd3#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Sd6
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd3#
        • 2.Rb4#
        • 2.Rc4#
      • 1...Sc6
        • 2.Sd7#
        • 2.Rd5#
      • 1...Sd7
        • 2.Sxd7#
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd3#
        • 2.Rxd7#
      • 1...Kxb6!
    • 1.Rd1?
      • threat
        • 2.Be3#
      • 1...Sc6
        • 2.Sd7#
      • 1...Kxb6!
    • 1.Rd3?
      • threat
        • 2.Be3#
      • 1...Sc6
        • 2.Sd7#
      • 1...Kxb6!
    • 1.Rc4+?
      • 1...Kd6
        • 2.Ba3#
      • 1...Kxb6!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Ba3#
      • 1...Kxd6
        • 2.Ba3#
      • 1...Sxd6
        • 2.Be3#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Sa6
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(b);N_GUARD::S(H)
    • S(b);N_GUARD::S(H),XS(b)
  • Tries
    • Try
      • B(A);
      • Threat
        • DUALS(5)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • R(E);
      • Threat
        • B(A)
      • Vars
        • S(b);N_GUARD::S(H)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • R(E);
      • Threat
        • B(A)
      • Vars
        • S(b);N_GUARD::S(H)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
  • Actual
    • R(E);
    • Threat
      • B(A)
    • Vars
      • K(a);S_FLIGHT,XR(E)::B(A)
      • S(c);SBLOCK,XR(E)::B(A)
      • S(b);N_GUARD::R1(E),XS(b)
      • S(b);N_GUARD::R1(E)
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