MESON Chess Problem Database

Problem Display
PID: 110131 (8/2N2p2/2pR1P2/3pp3/3k4/1P6/3K1N2/6B1 w - - 0 1)

Chistyakov, Aleksandr N

Kudesnik, 1991

8/2N2p2/2pR1P2/3pp3/3k4/1P6/3K1N2/6B1

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Sb5#
      • 2.Rxd5#
  • Tries
    • 1.Rd7?
      • 1...Kc5
        • 2.Sd3#
      • 1...c5
        • 2.Sb5#
        • 2.Rxd5#
      • 1...e4!
    • 1.Rd8?
      • 1...Kc5
        • 2.Sd3#
      • 1...c5
        • 2.Sb5#
        • 2.Rxd5#
      • 1...e4!
  • Keys
    • 1.Re6!
      • 1...Kc5
        • 2.Sd3#
      • 1...fxe6
        • 2.Sxe6#
      • 1...e4
        • 2.Sxe4#
      • 1...c5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::B(A)+S(C),DCHECK
      • Refutation
        • P(c);
    • Try
      • R(E);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::B(A)+S(C),DCHECK
      • Refutation
        • P(c);
  • Actual
    • R(E);N_PINP(b)
    • Vars
      • K(a);S_FLIGHT::B(A)+S(C),DCHECK
      • P(e);XR(E)::S(G),XP(e)
      • P(c);::B(A)+S(C),XP(c)
      • P(d);N_GUARD,SBLOCK::S(G)
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