MESON Chess Problem Database

Problem Display
PID: 175574 (5b2/2PnNpP1/3N1k2/3P4/3K4/5P2/4Q3/8 w - - 0 1)

Mieses, Jacques

Aftonbladet, 1900

5b2/2PnNpP1/3N1k2/3P4/3K4/5P2/4Q3/8

#2

8 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sb6
      • 2.Qe5#
    • 1...Sb8
      • 2.Qe5#
  • Tries
    • 1.Qg2?
      • threat
        • 2.Sg8#
        • 2.g8S#
      • 1...Bxe7
        • 2.g8S#
      • 1...Bxg7
        • 2.Sg8#
      • 1...Kxe7!
    • 1.Qe3?
      • threat
        • 2.Se8#
      • 1...Bxe7
        • 2.Qh6#
      • 1...Se5
        • 2.Qxe5#
      • 1...Kxg7!
    • 1.gxf8Q?
      • threat
        • 2.Se4#
        • 2.Qh6#
      • 1...Sxf8
        • 2.Qe5#
      • 1...Sc5
        • 2.Qh6#
        • 2.Qe5#
      • 1...Se5
        • 2.Se4#
        • 2.Qxe5#
      • 1...Kg5!
    • 1.gxf8B?
      • threat
        • 2.Se4#
      • 1...Sxf8
        • 2.Qe5#
      • 1...Sc5
        • 2.Qe5#
      • 1...Kg5!
  • Keys
    • 1.Qh2!
      • 1...Kg5
        • 2.Se4#
      • 1...Kxe7
        • 2.g8S#
      • 1...Kxg7
        • 2.Se8#
      • 1...Bxe7
        • 2.Qh6#
      • 1...Bxg7
        • 2.Qh4#
      • 1...Sc5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::QAB1(A)
    • S(b);N_GUARD::QAB1(A),XS(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);XS(G)::P=S
        • B(d);XP(H)::S(G)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • B(d);SBLOCK,XS(G)::QAR2(A)
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(H);P_PINP(c),XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);N_GUARD,N_SPINP(c),XQ(H)::QAB1(A)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • P(H);XB(d)
      • Threat
        • S(E)
      • Vars
        • S(b);N_GUARD,XB(H)::QAB1(A)
        • S(b);N_GUARD::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::S(E)
      • K(a);S_FLIGHT,XS(G)::P=S
      • K(a);S_FLIGHT,XP(H)::S(E)
      • B(d);SBLOCK,XS(G)::QAR2(A)
      • B(d);SBLOCK,XP(H)::QAB(A)
      • S(b);N_GUARD::QAB1(A)
      • S(b);N_GUARD::QAB1(A),XS(b)
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