MESON Chess Problem Database

Problem Display
PID: 23192 (8/8/8/B7/3Q4/3K2p1/8/4Nk1r w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/8/8/B7/3Q4/3K2p1/8/4Nk1r

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qf6#
      • 2.Qf4#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qg2#
      • 1...Kg1
        • 2.Qg2#
      • 1...Rg1
        • 2.Qf6#
        • 2.Qe2#
      • 1...g2
        • 2.Qxg2#
      • 1...Rh2!
    • 1.Qe4?
      • threat
        • 2.Qg2#
      • 1...Kg1
        • 2.Qg2#
      • 1...Kf2
        • 2.Qg2#
      • 1...Rg1
        • 2.Qf3#
        • 2.Qf5#
        • 2.Qe2#
        • 2.Qf4#
      • 1...g2
        • 2.Qxg2#
      • 1...Rh2!
    • 1.Qd5?
      • threat
        • 2.Qg2#
      • 1...Kg1
        • 2.Qg2#
      • 1...Kf2
        • 2.Qg2#
      • 1...Rg1
        • 2.Qf3#
        • 2.Qf7#
        • 2.Qf5#
      • 1...g2
        • 2.Qxg2#
      • 1...Rh2!
  • Keys
    • 1.Bb6!
      • 1...Kxe1
        • 2.Qa1#
      • 1...Rh3
        • 2.Qg1#
      • 1...Rg1
        • 2.Qxg1#
      • 1...Rh2
        • 2.Qg1#
      • 1...Rh4
        • 2.Qg1#
      • 1...Rh5
        • 2.Qg1#
      • 1...Rh6
        • 2.Qg1#
      • 1...Rh7
        • 2.Qg1#
      • 1...Rh8
        • 2.Qg1#
      • 1...g2
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • P(c);::QAB1(C),XP(c)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • P(c);::QAB1(C),XP(c)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • P(c);::QAB1(C),XP(c)
      • Refutation
        • R(b);
  • Actual
    • B(D);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(A)::QAR(C)
      • R(b);N_GUARD::QAR1(C)
      • R(b);N_GUARD::QAR1(C),XR(b)
      • P(c);N_GUARD::QAR1(C)
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