MESON Chess Problem Database

Problem Display
PID: 66007 (R7/6Q1/1N6/4P2p/7K/2kPP3/R7/8 w - - 0 1)

Lissner, Morris

Tijdschrift vd NSB, 1896

R7/6Q1/1N6/4P2p/7K/2kPP3/R7/8

#2

8 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5+?
      • 1...Kb3
        • 2.R8a3#
        • 2.Qb7#
      • 1...Kxd3!
    • 1.Qf8?
      • threat
        • 2.R8a3#
        • 2.Qa3#
      • 1...Kb3
        • 2.R8a3#
        • 2.Qa3#
      • 1...Kxd3!
    • 1.Qg2?
      • 1...Kb3
        • 2.Qb2#
      • 1...Kxd3
        • 2.R2a3#
        • 2.R8a3#
      • 1...Kb4!
    • 1.Qg4?
      • threat
        • 2.R8a3#
        • 2.Qc4#
      • 1...Kb3
        • 2.R8a3#
        • 2.Qc4#
      • 1...Kxd3
        • 2.R8a3#
        • 2.Qd4#
      • 1...hxg4!
    • 1.Qc7+?
      • 1...Kb3
        • 2.Qc4#
      • 1...Kb4
        • 2.Rb2#
        • 2.Qc4#
      • 1...Kxd3!
    • 1.Qe7?
      • threat
        • 2.R8a3#
        • 2.Qa3#
      • 1...Kb3
        • 2.R8a3#
        • 2.Qa3#
      • 1...Kxd3!
    • 1.Qf7?
      • threat
        • 2.Qc4#
      • 1...Kb4
        • 2.Qc4#
      • 1...Kxd3!
    • 1.Qg8?
      • threat
        • 2.Qc4#
      • 1...Kb4
        • 2.Qc4#
      • 1...Kxd3!
    • 1.e6+?
      • 1...Kb3
        • 2.Rb2#
        • 2.Qb2#
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kb4!
  • Keys
    • 1.Qb7!
      • 1...Kb3
        • 2.Sd5#
      • 1...Kxd3
        • 2.R8a3#
      • 1...Kb4
        • 2.Sa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(G);
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(a);S_FLIGHT::QAR1(G)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(a);S_FLIGHT::QAR1(G)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • P(E);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(B)::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(a);P-FLIGHT::QAR(G)+S(F)
      • K(a);P-FLIGHT,XP(B)::R(H)
      • K(a);S_FLIGHT::QAR(G)+S(F)
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