MESON Chess Problem Database

Problem Display
PID: 16249 (N5b1/1BR3p1/8/kn2n2Q/p5pB/p1R5/2N5/K7 w - - 0 1)

Ivanov, Vadim Aleksandrovich

2nd Prize, The Problemist, 2000/II

N5b1/1BR3p1/8/kn2n2Q/p5pB/p1R5/2N5/K7

#2

8 + 8

56 The Problemist 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Be1?
      • threat
        • 2.R3c5#
      • 1...Sxc3
        • 2.Rc5#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Sf3
        • 2.Rxf3#
      • 1...Sc4
        • 2.R3xc4#
      • 1...Sc6
        • 2.R3xc6#
      • 1...Bc4!
    • 1.R3c5?
      • threat
        • 2.Be1#
      • 1...Sd3
        • 2.Rxb5#
      • 1...Sf3
        • 2.Rxb5#
      • 1...Sc4
        • 2.Rxb5#
      • 1...Sc6
        • 2.Rxb5#
      • 1...g3!
    • 1.R7c5?
      • threat
        • 2.Bd8#
      • 1...Sc4
        • 2.Rxb5#
      • 1...Sc6
        • 2.Rxb5#
      • 1...Sd7
        • 2.Rxb5#
      • 1...Sf7
        • 2.Rxb5#
      • 1...g5!
  • Keys
    • 1.Bd8!
      • threat
        • 2.R7c5#
      • 1...Sxc7
        • 2.Rc5#
      • 1...Sc4
        • 2.R7xc4#
      • 1...Sc6
        • 2.R7xc6#
      • 1...Sd7
        • 2.Rxd7#
      • 1...Sf7
        • 2.Rxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Threat
        • B(D)+R(C)
      • Vars
        • S(e);OGATEB,P_SPINS(e),XR(C)::R(G)
        • S(f);P_SPINS(e)::B(D)+R(C),XS(f)
      • Refutation
        • B(h);
    • Try
      • R(C);P_PINS(e)
      • Threat
        • B(D)
      • Vars
        • S(f);::R1(C),XS(e)
      • Refutation
        • P(c);
    • Try
      • R(G);P_PINS(e)
      • Threat
        • B(D)
      • Vars
        • S(f);::R1(G),XS(e)
      • Refutation
        • P(g);
  • Actual
    • B(D);
    • Threat
      • B(D)+R(G)
    • Vars
      • S(e);OGATEB,P_SPINS(f),XR(G)::R(C)
      • S(f);P_SPINS(e)::B(D)+R(G),XS(f)
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