MESON Chess Problem Database

Problem Display
PID: 264952 (B7/8/2R1p1p1/N1N2br1/2PkPBp1/p1p5/2pnK3/2b5 w - - 0 1)

Wrobel, Marian

Probleemblad, 1949

B7/8/2R1p1p1/N1N2br1/2PkPBp1/p1p5/2pnK3/2b5

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe4
      • 2.Sxe6#
    • 1...Sxc4
      • 2.Sab3#
    • 1...Sxe4
      • 2.Scb3#
    • 1...e5
      • 2.Be3#
  • Tries
    • 1.Sxe6+?
      • 1...Kxe4
        • 2.Rc5#
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rd6#
        • 2.Rc7#
        • 2.Rc8#
      • 1...Bxe6!
    • 1.Sd7?
      • threat
        • 2.Rd6#
      • 1...Bxe4
        • 2.Be3#
      • 1...Sxc4
        • 2.Rxc4#
      • 1...Sxe4
        • 2.Sb3#
        • 2.Be5#
      • 1...Kxe4!
    • 1.Rxe6?
      • threat
        • 2.Be3#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...Sxc4
        • 2.Sab3#
        • 2.Scb3#
      • 1...Sxe4
        • 2.Scb3#
      • 1...Sb1
        • 2.Scb3#
      • 1...Sf1
        • 2.Scb3#
      • 1...Sb3
        • 2.Scxb3#
      • 1...Sf3
        • 2.Scb3#
      • 1...Kxc5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Rd6#
      • 1...Kxe4
        • 2.Rd6#
      • 1...Bxe4
        • 2.Be3#
      • 1...Sxc4
        • 2.Rxc4#
      • 1...Sxe4
        • 2.Sb3#
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(h);N_GUARD,SBLOCK,XP(C)::S(F),XP(j)
    • S(c);N_GUARD,SBLOCK,XP(B)::S(E)
    • S(c);N_GUARD,SBLOCK,XP(C)::S(F)
    • P(j);SBLOCK::B(D)
  • Tries
    • Try
      • S(F);CHECK,XP(j)
      • Refutation
        • B(h);XS(F)
    • Try
      • S(F);
      • Threat
        • R(G)
      • Vars
        • B(h);SBLOCK,XP(C)::B(D)
        • S(c);OGATE,XP(B)::R1(G),XS(c)
      • Refutation
        • K(f);P-FLIGHT,XP(C)
    • Try
      • R(G);XP(j)
      • Threat
        • B(D)
      • Vars
        • B(h);XR(G)::S(F),XB(h)
        • S(c);N_GUARD,XP(C)::S(F)
        • S(c);N_GUARD::S(F)
        • S(c);N_GUARD::S(F),XS(c)
      • Refutation
        • K(f);S_FLIGHT,XS(F)
  • Actual
    • S(F);
    • Threat
      • R(G)
    • Vars
      • K(f);P-FLIGHT,XP(C)::B(H)+R(G)
      • B(h);SBLOCK,XP(C)::B(D)
      • S(c);OGATE,XP(B)::R1(G),XS(c)
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