MESON Chess Problem Database

Problem Display
PID: 119928 (n1b5/1p2N3/1N3p2/p1k5/p1B5/K5B1/3P4/Q2n4 w - - 0 1)

Moller, Jorgen Thorvald

De Amsterdammer Weekblad voor Nederland, 1898

n1b5/1p2N3/1N3p2/p1k5/p1B5/K5B1/3P4/Q2n4

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb6
      • 2.Qd4#
    • 1...Sb2
      • 2.Qg1#
    • 1...Sc3
      • 2.Qg1#
  • Tries
    • 1.Be5?
      • threat
        • 2.Qd4#
      • 1...Kxb6
        • 2.Qd4#
      • 1...Sb2
        • 2.Qg1#
      • 1...Sc3
        • 2.Qg1#
      • 1...fxe5!
    • 1.Bd6+?
      • 1...Kxb6
        • 2.Qd4#
      • 1...Kxd6!
    • 1.Bd3?
      • threat
        • 2.Sxa4#
      • 1...Kxb6
        • 2.Qd4#
      • 1...Sb2
        • 2.Qg1#
      • 1...Sc3
        • 2.Qg1#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Sxb6!
    • 1.Qc3?
      • threat
        • 2.Sxa4#
      • 1...Kxb6
        • 2.Qd4#
      • 1...Sxb6
        • 2.d4#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Sb2
        • 2.Qe3#
      • 1...Sxc3!
    • 1.Qe5+?
      • 1...Kxb6
        • 2.Qd4#
      • 1...fxe5!
    • 1.d3?
      • threat
        • 2.Sxa4#
      • 1...Kxb6
        • 2.Qd4#
      • 1...Sb2
        • 2.Qg1#
      • 1...Sc3
        • 2.Qg1#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Sxb6!
  • Keys
    • 1.Be2!
      • threat
        • 2.Sxa4#
      • 1...Kxb6
        • 2.Qd4#
      • 1...Sxb6
        • 2.d4#
      • 1...Sb2
        • 2.Qg1#
      • 1...Sc3
        • 2.Qg1#
      • 1...Bd7
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT,XS(F)::QAB(A)
    • S(a);OGATE::QAB(A)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(d);S_FLIGHT,XS(F)::QAB(A)
        • S(a);OGATE::QAB(A)
      • Refutation
        • P(e);XB(D)
    • Try
      • B(D);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(F)::QAB(A)
      • Refutation
        • K(d);S_FLIGHT,XB(D)
    • Try
      • B(E);
      • Threat
        • S(F),XP(b)
      • Vars
        • K(d);S_FLIGHT,XS(F)::QAB(A)
        • S(a);OGATE::QAB(A)
        • B(h);N_GUARD::S(F),XB(h)
      • Refutation
        • S(g);XS(F)
    • Try
      • Q(A);
      • Threat
        • S(F),XP(b)
      • Vars
        • K(d);S_FLIGHT,XS(F)::QAB(A)
        • S(g);SBLOCK,XS(F)::P(B)
        • B(h);N_GUARD::S(F),XB(h)
        • S(a);N_GUARD::QAB(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(F)::QAB(A)
      • Refutation
        • P(e);XQ(A)
    • Try
      • P(B);
      • Threat
        • S(F),XP(b)
      • Vars
        • K(d);S_FLIGHT,XS(F)::QAB(A)
        • S(a);OGATE::QAB(A)
        • B(h);N_GUARD::S(F),XB(h)
      • Refutation
        • S(g);XS(F)
  • Actual
    • B(E);
    • Threat
      • S(F),XP(b)
    • Vars
      • K(d);S_FLIGHT,XS(F)::QAB(A)
      • S(g);SBLOCK,XS(F)::P(B)
      • S(a);OGATE::QAB(A)
      • B(h);N_GUARD::S(F),XB(h)
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