MESON Chess Problem Database

Problem Display
PID: 180270 (1n6/b2p4/PpPP1B2/kB5Q/pN5R/p2P4/PnP5/1R4K1 w - - 0 1)

Lider, Valentin Viktorovich

Probleemblad, 1973

1n6/b2p4/PpPP1B2/kB5Q/pN5R/p2P4/PnP5/1R4K1

#2

13 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Bc4+?
      • 1...Kxb4
        • 2.Be6#
        • 2.Bf7#
        • 2.Bg8#
        • 2.Qb5#
        • 2.c3#
      • 1...b5+!
    • 1.Bc3?
      • 1...Sxd3
        • 2.Sxd3#
      • 1...Sxa6
        • 2.Sxa6#
      • 1...Sxc6
        • 2.Sxc6#
      • 1...dxc6
        • 2.Sxc6#
      • 1...Sc4
        • 2.Sd5#
      • 1...Sd1!
  • Keys
    • 1.Bd8!
      • 1...Sxd3
        • 2.Bxd3#
      • 1...Sxa6
        • 2.Bxa6#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...dxc6
        • 2.Bxc6#
      • 1...Sd1
        • 2.Bc4#
      • 1...Sc4
        • 2.Bxc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);CHECK
      • Refutation
        • P(e);CHECK,P_SPINP(e)
    • Try
      • B(M);
      • Vars
        • S(a);XP(E)::B(M)+S(F),XS(a)
        • S(h);XP(J)::B(M)+S(F),XS(h)
        • S(h);XP(K)::B(M)+S(F),DCHECK,XS(h)
        • P(g);XP(K)::B(M)+S(F),DCHECK,XP(g)
        • S(a);::B(M)+S(F)
      • Refutation
        • S(a);
  • Actual
    • B(M);P_PINP(e)
    • Vars
      • S(a);OGATE,XP(E)::QAR(I)+B(H),XS(a)
      • S(h);OGATE,XP(J)::QAR(I)+B(H),XS(h)
      • S(h);OGATE,XP(K)::QAR(I)+B(H),XS(h)
      • P(g);OGATE,XP(K)::QAR(I)+B(H),XP(g)
      • S(a);::QAR(I)+B(H)
      • S(a);::QAR(I)+B(H),XS(a)
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