MESON Chess Problem Database

Problem Display
PID: 268982 (8/5K1n/Bp1Q1pp1/3NN1p1/4k1Pp/2p1B1Pn/2b3P1/8 w - - 0 1)

Burger, Robert Eugene

20/27 Place, 09. WCCT, 2012-2013

8/5K1n/Bp1Q1pp1/3NN1p1/4k1Pp/2p1B1Pn/2b3P1/8

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Bd3#
    • 1...Bb3
      • 2.Bd3#
    • 1...Bd3
      • 2.Bxd3#
    • 1...Ba4
      • 2.Bd3#
  • Tries
    • 1.Sxf6+?
      • 1...Sxf6
        • 2.Qd4#
      • 1...Kxe3!
    • 1.Sd3?
      • threat
        • 2.Qe6#
      • 1...b5
        • 2.Sc5#
      • 1...Sf4
        • 2.Sf2#
      • 1...Sf8!
    • 1.Sd7?
      • threat
        • 2.Qe6#
      • 1...b5
        • 2.Sc5#
      • 1...Sf8
        • 2.S7xf6#
      • 1...Sf4!
    • 1.Bc1?
      • threat
        • 2.Sxc3#
      • 1...Kd4
        • 2.Sxf6#
      • 1...Bb3!
    • 1.Bxb6?
      • threat
        • 2.Sxc3#
      • 1...Bb3
        • 2.Bd3#
      • 1...hxg3!
    • 1.Qb4+?
      • 1...Kxd5
        • 2.Qd4#
      • 1...Kxe5!
  • Keys
    • 1.Qxb6!
      • threat
        • 2.Qd4#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qe6#
      • 1...fxe5
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::B(G)
    • B(a);N_GUARD,P_PINS(E)::B(G)
    • B(a);N_GUARD::B(G),XB(a)
  • Tries
    • Try
      • S(E);CHECK,XP(h)
      • Vars
        • S(j);XS(E)::QAR1(H)
      • Refutation
        • K(d);P-FLIGHT,XB(B)
    • Try
      • S(F);
      • Threat
        • QAR2(H)
      • Vars
        • P(g);N_GUARD::S(F)
        • S(c);N_GUARD::S(F)
      • Refutation
        • S(j);
    • Try
      • S(F);
      • Threat
        • QAR2(H)
      • Vars
        • P(g);N_GUARD::S(F)
        • S(j);N_GUARD::S(F),XP(h)
      • Refutation
        • S(c);
    • Try
      • B(B);
      • Threat
        • S(E),XP(b)
      • Vars
        • K(d);P-FLIGHT,S_CUTS(j)::QAR(H)+S(E),XP(h)
      • Refutation
        • B(a);P_PINS(E)
    • Try
      • B(B);XP(g)
      • Threat
        • S(E),XP(b)
      • Vars
        • B(a);N_GUARD,P_PINS(E)::B(G)
      • Refutation
        • P(e);XP(C)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(E)::QAR1(H)
      • Refutation
        • K(d);P-FLIGHT,XS(F)
  • Actual
    • Q(H);XP(g)
    • Threat
      • QAR1(H)
    • Vars
      • K(d);S_FLIGHT,XS(E)::QAR1(H)
      • K(d);OGATEB,P-FLIGHT,XS(F)::QAR1(H)
      • P(h);SBLOCK,XS(F)::S(E),XP(b)
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