MESON Chess Problem Database

Problem Display
PID: 51989 (4r3/B1RQ2p1/1n1nP1K1/b1NPN3/3k1P2/1R1pp3/8/5b1B w - - 0 1)

Ivanov, Nikolai

Sp. Prize, Isaev-100 MT, 2000

4r3/B1RQ2p1/1n1nP1K1/b1NPN3/3k1P2/1R1pp3/8/5b1B

#2

11 + 9

23 Die Schwalbe 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe6+
      • 2.Sxe6#
    • 1...Bg2
      • 2.Rxd3#
    • 1...Bh3
      • 2.Rxd3#
    • 1...Sbc4
      • 2.Sc6#
    • 1...Sdc4
      • 2.Sf3#
    • 1...e2
      • 2.Rxd3#
  • Tries
    • 1.e7?
      • threat
        • 2.Se6#
      • 1...Bg2
        • 2.Rxd3#
      • 1...e2
        • 2.Rxd3#
      • 1...Bh3
        • 2.Rxd3#
      • 1...Rxe7!
  • Keys
    • 1.Ra3!
      • threat
        • 2.Sb3#
      • 1...Rxe6+
        • 2.Sxe6#
      • 1...Bg2
        • 2.Rxd3#
      • 1...e2
        • 2.Rxd3#
      • 1...Sbc4
        • 2.Sc6#
      • 1...Sdc4
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(i);CHECK,XP(G)::S(D),XR(i)
    • B(a);N_GUARD::R1(B),XP(b)
    • S(f);SBLOCK::S(F)
    • S(g);SBLOCK::S(F)
    • P(c);S_CUTB(a)::R1(B),XP(b)
  • Tries
    • Try
      • P(G);
      • Threat
        • S(D)
      • Vars
        • B(a);N_GUARD::R1(B),XP(b)
        • P(c);S_CUTB(a)::R1(B),XP(b)
      • Refutation
        • R(i);XP(G)
  • Actual
    • R(B);
    • Threat
      • S(D)
    • Vars
      • R(i);CHECK,XP(G)::S(D),XR(i)
      • B(a);N_GUARD::R1(B),XP(b)
      • P(c);S_CUTB(a)::R1(B),XP(b)
      • S(f);SBLOCK::S(F)
      • S(g);SBLOCK::S(F)
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