MESON Chess Problem Database

Problem Display
PID: 96269 (8/4K1pb/7b/R1N1NkpB/1R3P2/4pPr1/8/r5q1 w - - 0 1)

Bakcsi, Gyorgy

US Problem Bulletin, 1988

8/4K1pb/7b/R1N1NkpB/1R3P2/4pPr1/8/r5q1

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg6
      • 2.Bxg6#
    • 1...Bg8
      • 2.Bg6#
  • Tries
    • 1.Se4?
      • threat
        • 2.Sd6#
      • 1...Kxf4
        • 2.Sd3#
      • 1...Qd1
        • 2.Sxg3#
      • 1...Rd1
        • 2.Sd3#
      • 1...gxf4!
    • 1.Sf7?
      • threat
        • 2.Sa4#
        • 2.Sd6#
      • 1...Rxa5
        • 2.Sd6#
      • 1...gxf4
        • 2.Sa4#
      • 1...Qc1
        • 2.Sd6#
      • 1...Qf1
        • 2.Sd6#
      • 1...Rc1
        • 2.Sd6#
      • 1...Rd1
        • 2.Sd3#
      • 1...Ra4
        • 2.Sxa4#
        • 2.Sd6#
      • 1...e2
        • 2.Sd6#
      • 1...Qd1!
    • 1.Bf7?
      • threat
        • 2.Be6#
      • 1...Bg8
        • 2.Bg6#
      • 1...gxf4!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sd6#
      • 1...Kxf4
        • 2.Se6#
      • 1...gxf4
        • 2.Sa4#
      • 1...Qd1
        • 2.Sxe3#
      • 1...Rd1
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(i);N_GUARD::B(G),XB(i)
    • B(i);N_GUARD::B(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • K(e);P-FLIGHT,XP(C)::S(F)
        • Q(b);N_GUARD::S(E),XR(d)
        • R(a);N_GUARD::R(D)+S(F)
      • Refutation
        • P(f);XP(C)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XR(D)::S(F)
        • P(f);XP(C)::R(D)+S(E)
        • Q(b);::S(F)
        • R(a);::S(F)
        • R(a);N_GUARD::R(D)+S(E)
        • P(c);::S(F)
      • Refutation
        • Q(b);
    • Try
      • B(G);
      • Threat
        • B(G)
      • Vars
        • B(i);N_GUARD::B(G)
      • Refutation
        • P(f);XP(C)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(e);P-FLIGHT,XP(C)::S(E)
      • P(f);SBLOCK,XP(C)::R(D)+S(E)
      • Q(b);N_GUARD::S(F),XP(c)
      • R(a);N_GUARD::R(D)+S(E)
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