MESON Chess Problem Database

Problem Display
PID: 82504 (B2R2K1/4p1N1/2PP4/1npk4/2p2P2/2P5/1Q2P3/r7 w - - 0 1)

Havel, Miroslav

Obrazkova Revue, 1900

B2R2K1/4p1N1/2PP4/1npk4/2p2P2/2P5/1Q2P3/r7

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.c7#
    • 1...Rc1
      • 2.c7#
    • 1...Rd1
      • 2.c7#
    • 1...Re1
      • 2.c7#
    • 1...Rf1
      • 2.c7#
    • 1...Rg1
      • 2.c7#
    • 1...Rh1
      • 2.c7#
    • 1...Sa3
      • 2.c7#
  • Tries
    • 1.Qc2?
      • threat
        • 2.e4#
      • 1...Sxc3
        • 2.dxe7#
      • 1...Re1
        • 2.c7#
      • 1...Rxa8!
  • Keys
    • 1.Qb1!
      • threat
        • 2.e4#
      • 1...Rxb1
        • 2.c7#
      • 1...Rxa8
        • 2.Qh1#
      • 1...Sxc3
        • 2.dxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::B(H)+P(E)
    • R(a);N_GUARD,P_PINS(G)::B(H)+P(E)
    • S(c);S_CUTR(a)::B(H)+P(E)
  • Tries
    • Try
      • Q(A);
      • Threat
        • P(B)
      • Vars
        • S(c);N_GUARD,XP(C)::R(I)+P(F),XP(f)
        • R(a);N_GUARD::B(H)+P(E)
      • Refutation
        • R(a);P_PINR(I),XB(H)
  • Actual
    • Q(A);
    • Threat
      • P(B)
    • Vars
      • R(a);N_GUARD,XQ(A)::B(H)+P(E)
      • R(a);N_GUARD,P_PINR(I),XB(H)::QAB(A)
      • S(c);N_GUARD,XP(C)::R(I)+P(F),XP(f)
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