MESON Chess Problem Database

Problem Display
PID: 23112 (8/8/8/3n4/2pN4/3k1K2/1Q6/1b6 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/8/8/3n4/2pN4/3k1K2/1Q6/1b6

#2

3 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • threat
        • 2.Sc1#
      • 1...Bc2
        • 2.Qd4#
      • 1...Sc3
        • 2.Qxc3#
      • 1...c3!
    • 1.Sb3?
      • threat
        • 2.Sc1#
        • 2.Sc5#
        • 2.Qd2#
      • 1...c3
        • 2.Qe2#
      • 1...Bc2
        • 2.Qd4#
      • 1...Sc3
        • 2.Qd2#
      • 1...cxb3!
    • 1.Sc6?
      • threat
        • 2.Se5#
      • 1...Bc2
        • 2.Qd4#
      • 1...c3
        • 2.Qe2#
      • 1...Sc3!
    • 1.Se6?
      • threat
        • 2.Sc5#
      • 1...Bc2
        • 2.Qd4#
      • 1...c3
        • 2.Qe2#
      • 1...Sc3!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Qe2#
      • 1...Bc2
        • 2.Qd4#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sf4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(a);SBLOCK::QAR1(A)
        • S(d);N_GUARD::QAR1(A),XS(d)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Threat
        • DUALS(3)
      • Vars
        • P(c);SBLOCK::QAB1(A)
        • B(a);SBLOCK::QAR1(A)
        • S(d);::QAR1(A)
      • Refutation
        • P(c);XS(C)
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(a);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • S(d);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(a);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • S(d);
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • B(a);SBLOCK::QAR1(A)
      • S(d);N_GUARD::QAR1(A),XS(d)
      • S(d);N_GUARD::QAR1(A)
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