MESON Chess Problem Database

Problem Display
PID: 180291 (2R5/p6b/3p1K2/3k4/2p3R1/8/nN4n1/BB6 w - - 0 1)

Lider, Valentin Viktorovich

diagrammes, 1992

2R5/p6b/3p1K2/3k4/2p3R1/8/nN4n1/BB6

#2

6 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Bxa2#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Rd4#
      • 1...Sf4
        • 2.Sxf4#
      • 1...Sc3
        • 2.Sb4#
      • 1...c3
        • 2.Bxa2#
      • 1...Be4!
    • 1.Sa4?
      • threat
        • 2.Rd4#
      • 1...Be4
        • 2.Bxe4#
      • 1...Sc3
        • 2.Sxc3#
      • 1...c3
        • 2.Bxa2#
      • 1...Sf4!
    • 1.Sxc4?
      • threat
        • 2.Rd4#
      • 1...Be4
        • 2.Bxe4#
      • 1...Sf4
        • 2.Se3#
      • 1...Sc3!
    • 1.Rcxc4?
      • threat
        • 2.Rgd4#
      • 1...Be4
        • 2.Bxe4#
      • 1...Sf4!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Rd4#
      • 1...Be4
        • 2.Bxe4#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sf4
        • 2.Se3#
      • 1...c3
        • 2.Bxa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::B(B),XS(a)
  • Tries
    • Try
      • S(C);
      • Threat
        • R1(D)
      • Vars
        • S(b);N_GUARD::S(C),XS(b)
        • S(a);N_GUARD::S(C)
        • P(c);OGATEB::B(B),XS(a)
      • Refutation
        • B(g);
    • Try
      • S(C);
      • Threat
        • R1(D)
      • Vars
        • B(g);N_GUARD::B(B),XB(g)
        • S(a);N_GUARD::S(C),XS(a)
        • P(c);OGATEB::B(B),XS(a)
      • Refutation
        • S(b);
    • Try
      • S(C);XP(c)
      • Threat
        • R1(D)
      • Vars
        • B(g);N_GUARD::B(B),XB(g)
        • S(b);N_GUARD::S(C)
      • Refutation
        • S(a);
    • Try
      • R(F);XP(c)
      • Threat
        • R1(D)
      • Vars
        • B(g);N_GUARD::B(B),XB(g)
      • Refutation
        • S(b);
  • Actual
    • S(C);
    • Threat
      • R1(D)
    • Vars
      • B(g);N_GUARD::B(B),XB(g)
      • S(a);N_GUARD::S(C),XS(a)
      • S(b);N_GUARD::S(C)
      • P(c);OGATEB::B(B),XS(a)
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