MESON Chess Problem Database

Problem Display
PID: 174818 (4B2b/2n1Q3/6p1/1pR1pb1n/pp1B4/3k4/3NNP2/3K4 w - - 0 1)

Barth, Michael

Freie Presse, 1991

4B2b/2n1Q3/6p1/1pR1pb1n/pp1B4/3k4/3NNP2/3K4

#2

8 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Bxb5#
    • 1...Sa6
      • 2.Bxb5#
    • 1...Se6
      • 2.Bxb5#
    • 1...Sa8
      • 2.Bxb5#
    • 1...b3
      • 2.Rc3#
    • 1...exd4
      • 2.Sc1#
  • Tries
    • 1.Bc3?
      • threat
        • 2.Sc1#
      • 1...bxc3
        • 2.Rxc3#
      • 1...Bg4!
    • 1.Rd5?
      • threat
        • 2.Sc1#
      • 1...Sxd5
        • 2.Bxb5#
      • 1...exd4
        • 2.Qe3#
      • 1...Bg4!
    • 1.Qd6?
      • threat
        • 2.Sc1#
      • 1...Sd5
        • 2.Bxb5#
      • 1...Bg4!
    • 1.Qxe5?
      • threat
        • 2.Sc1#
        • 2.Qe3#
      • 1...Bg4
        • 2.Qe3#
        • 2.Qe4#
      • 1...Be4
        • 2.Sc1#
        • 2.Qxe4#
      • 1...Sd5
        • 2.Sc1#
        • 2.Bxb5#
      • 1...Bxe5!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qe3#
      • 1...exd4
        • 2.Sc1#
      • 1...Sf4
        • 2.Qg3#
      • 1...Sd5
        • 2.Bxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • S(i);N_GUARD::B(H),XP(d)
    • P(c);N_GUARD::R1(F)
    • P(e);SBLOCK,XB(E)::S(C)
  • Tries
    • Try
      • B(E);
      • Threat
        • S(C)
      • Vars
        • P(c);OGATE,XB(E)::R1(F),XP(c)
      • Refutation
        • B(f);P_PINS(C)
    • Try
      • R(F);
      • Threat
        • S(C)
      • Vars
        • S(i);N_GUARD,XR(F)::B(H),XP(d)
        • P(e);OGATE,P_SPINP(e),XB(E)::QAR1(G)
      • Refutation
        • B(f);P_PINS(C)
    • Try
      • Q(G);
      • Threat
        • S(C)
      • Vars
        • S(i);N_GUARD::B(H),XP(d)
      • Refutation
        • B(f);P_PINS(C)
    • Try
      • Q(G);XP(e)
      • Threat
        • DUALS(2)
      • Refutation
        • B(j);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • P(e);SBLOCK,XB(E)::S(C)
      • S(g);N_GUARD::QAR(G)
      • S(i);N_GUARD::B(H),XP(d)
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