MESON Chess Problem Database

Problem Display
PID: 216226 (1n6/1N5B/1PN5/3kP2p/8/8/8/1Q5K w - - 0 1)

Noack, Ludwig

Sammlung Leichterer Schachaufgaben 2 (Dufresne), 1882

1n6/1N5B/1PN5/3kP2p/8/8/8/1Q5K

#2

7 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qd3#
  • Tries
    • 1.Be4+?
      • 1...Kc4
        • 2.Qd3#
        • 2.Qb4#
      • 1...Ke6!
    • 1.Bf5?
      • threat
        • 2.Qe4#
        • 2.Qb5#
      • 1...Kc4
        • 2.Qd3#
      • 1...Sxc6
        • 2.Qe4#
      • 1...Sa6
        • 2.Qe4#
      • 1...Sd7
        • 2.Qe4#
      • 1...Kxc6!
    • 1.Qd3+?
      • 1...Ke6
        • 2.Sbd8#
        • 2.Bg8#
      • 1...Kxc6!
    • 1.Qg6?
      • threat
        • 2.Bg8#
      • 1...Kc4
        • 2.Qd3#
      • 1...Sxc6!
    • 1.Qd1+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke6
        • 2.Sbd8#
      • 1...Kxc6!
  • Keys
    • 1.e6!
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kxc6
        • 2.Be4#
      • 1...Kxe6
        • 2.Qf5#

This is a version of 218549

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • B(G);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • S(c);SBLOCK,XS(E)::QAB1(A)
        • S(c);::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • Q(A);
      • Threat
        • B(G)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • S(c);XS(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
  • Actual
    • P(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);S_FLIGHT,XS(E)::B(G)
      • K(a);S_FLIGHT,XP(C)::QAB1(A)
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