MESON Chess Problem Database

Problem Display
PID: 162758 (QK6/5p2/1P3R2/3pp3/2pPk3/1p3R2/BP1n2P1/6B1 w - - 0 1)

Gockel, Hubert

Rosner, Eugene David

Die Schwalbe, 2016

QK6/5p2/1P3R2/3pp3/2pPk3/1p3R2/BP1n2P1/6B1

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Bxb1#
    • 1...Sf1
      • 2.Bb1#
    • 1...Sxf3
      • 2.Bb1#
  • Tries
    • 1.R6f5?
      • threat
        • 2.Rxe5#
      • 1...Sxf3
        • 2.Bb1#
      • 1...exd4
        • 2.Qxd5#
      • 1...f6!
    • 1.Qa3?
      • 1...Sxf3
        • 2.Bb1#
      • 1...bxa2
        • 2.Qe3#
      • 1...exd4
        • 2.Qe7#
      • 1...Sb1
        • 2.Bxb1#
      • 1...Sf1
        • 2.Bb1#
      • 1...c3!
  • Keys
    • 1.Qa4!
      • 1...Sxf3
        • 2.Bb1#
      • 1...bxa2
        • 2.Qc2#
      • 1...exd4
        • 2.Qe8#
      • 1...c3
        • 2.Re3#
      • 1...Sb1
        • 2.Bxb1#
      • 1...Sf1
        • 2.Bb1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::B(B),XS(a)
    • S(a);N_GUARD::B(B)
    • S(a);N_GUARD,XR(E)::B(B)
  • Tries
    • Try
      • R(H);
      • Threat
        • R1(H),XP(f)
      • Vars
        • S(a);N_GUARD,XR(E)::B(B)
        • P(f);XP(F)::QAB1(I),XP(e)
      • Refutation
        • P(g);
    • Try
      • Q(I);N_PINP(e)
      • Vars
        • S(a);N_GUARD,XR(E)::B(B)
        • P(b);OGATE,XB(B)::QAR1(I)
        • P(f);OGATEB,XP(F)::QAR(I)
        • S(a);N_GUARD::B(B),XS(a)
        • S(a);N_GUARD::B(B)
      • Refutation
        • P(c);
  • Actual
    • Q(I);N_PINP(e)
    • Vars
      • S(a);N_GUARD,XR(E)::B(B)
      • P(b);OGATE,XB(B)::QAB(I)
      • P(f);OGATEB,XP(F)::QAR(I)
      • P(c);::R1(E)
      • S(a);N_GUARD::B(B),XS(a)
      • S(a);N_GUARD::B(B)
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