MESON Chess Problem Database

Problem Display
PID: 140418 (4R2K/3N1pR1/2n5/1B1p1k2/4p3/r1p5/3PN3/b1B5 w - - 0 1)

Muller, Dieter

Probleemblad, 1976

4R2K/3N1pR1/2n5/1B1p1k2/4p3/r1p5/3PN3/b1B5

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Re5#
    • 1...Sd4
      • 2.Re5#
    • 1...Sa5
      • 2.Re5#
    • 1...Se5
      • 2.Rxe5#
    • 1...Sa7
      • 2.Re5#
    • 1...Sb8
      • 2.Re5#
    • 1...Sd8
      • 2.Re5#
    • 1...e3
      • 2.Bd3#
  • Tries
    • 1.d3?
      • threat
        • 2.Sg3#
        • 2.Rg5#
      • 1...Se7
        • 2.Sd4#
      • 1...c2
        • 2.Sg3#
      • 1...f6
        • 2.Sg3#
      • 1...e3!
    • 1.d4?
      • threat
        • 2.Sg3#
        • 2.Rg5#
      • 1...c2
        • 2.Rg5#
      • 1...e3
        • 2.Bd3#
      • 1...f6
        • 2.Sg3#
      • 1...Se7!
  • Keys
    • 1.dxc3!
      • threat
        • 2.Sg3#
        • 2.Rg5#
      • 1...Rxc3
        • 2.Rg5#
      • 1...Bxc3
        • 2.Sg3#
      • 1...Se7
        • 2.Sd4#
      • 1...e3
        • 2.Bd3#
      • 1...f6
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • S(g);N_GUARD::R1(G)
    • S(g);N_GUARD::R1(G),XS(g)
    • P(d);OGATEB::B(D)
  • Tries
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);N_GUARD::S(C)
        • P(c);P_PINR(F)::S(C)
        • P(h);::S(C)
      • Refutation
        • P(d);
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::R1(F)
        • P(d);OGATEB::B(D)
        • P(h);::S(C)
      • Refutation
        • S(g);
  • Actual
    • P(B);XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • R(b);XP(B)::R1(F)
      • B(a);P_PINR(F),XP(B)::S(C)
      • S(g);N_GUARD::S(C)
      • P(d);OGATEB::B(D)
      • P(h);::S(C)
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