MESON Chess Problem Database

Problem Display
PID: 176141 (Q7/3N3b/3pp3/2PN4/3pk1P1/4P1K1/2n5/5B2 w - - 0 1)

von Hellwig, Anna Maria

1st Prize, Schach-Echo, 1934

Q7/3N3b/3pp3/2PN4/3pk1P1/4P1K1/2n5/5B2

#2

8 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe3
      • 2.Sc3#
      • 2.S5f6#
    • 1...d3
      • 2.Bg2#
    • 1...exd5
      • 2.Qe8#
    • 1...e5
      • 2.S7f6#
  • Tries
    • 1.S5b6+?
      • 1...Kxe3
        • 2.Sc4#
      • 1...d5!
    • 1.Qa3?
      • threat
        • 2.S5f6#
        • 2.Bg2#
      • 1...Kxd5
        • 2.Qa8#
      • 1...Sxe3
        • 2.S5f6#
      • 1...dxe3
        • 2.Qd3#
      • 1...exd5
        • 2.Bg2#
        • 2.Qd3#
      • 1...Se1
        • 2.S5f6#
      • 1...d3
        • 2.Bg2#
        • 2.Qxd3#
      • 1...Sxa3!
    • 1.Qa6?
      • threat
        • 2.Bg2#
      • 1...Kxd5
        • 2.Qb7#
        • 2.Qa8#
      • 1...Sxe3
        • 2.S5f6#
      • 1...dxe3
        • 2.Qd3#
      • 1...exd5
        • 2.Qd3#
      • 1...Se1!
  • Keys
    • 1.Qh8!
      • 1...Kxd5
        • 2.Qa8#
      • 1...Sxe3
        • 2.S5f6#
      • 1...dxe3
        • 2.Sc3#
      • 1...dxc5
        • 2.Qe5#
      • 1...exd5
        • 2.Qe8#
      • 1...Bf5
        • 2.Qh1#
      • 1...Bg6
        • 2.Qh1#
      • 1...Bg8
        • 2.Qh1#
      • 1...Sa1
        • 2.Qxd4#
      • 1...Se1
        • 2.Qxd4#
      • 1...Sa3
        • 2.Qxd4#
      • 1...Sb4
        • 2.Qxd4#
      • 1...d3
        • 2.Bg2#
      • 1...e5
        • 2.S7f6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::B(A)
    • P(e);OGATEB,P_SPINP(e),SBLOCK,XS(F)::QAR(H)
    • P(e);SBLOCK::S(G)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(B)::S(F)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(H)
        • S(a);XP(B)::S(F)
        • P(b);XP(B)::QAB1(H)
        • S(a);::S(F)
      • Refutation
        • S(a);XQ(H)
    • Try
      • Q(H);
      • Threat
        • B(A)
      • Vars
        • S(a);SBLOCK,XP(B)::S(F)
        • P(b);XP(B)::QAB1(H)
        • P(e);SBLOCK,XS(F)::QAB1(H)
      • Refutation
        • S(a);
  • Actual
    • Q(H);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(H)
      • S(a);SBLOCK,XP(B)::S(F)
      • P(b);N_GUARD,SBLOCK,XP(B)::S(F)
      • P(d);N_GUARD,XP(E)::QAR1(H)
      • P(e);OGATEB,SBLOCK,XS(F)::QAR(H)
      • B(f);OGATE::QAB(H)
      • S(a);N_GUARD::QAR1(H),XP(b)
      • P(b);SBLOCK::B(A)
      • P(e);SBLOCK::S(G)
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