MESON Chess Problem Database

Problem Display
PID: 10952 (8/8/7p/4K1kb/8/7R/7Q/8 w - - 0 1)

Loyd, Sam

Detroit Free Press, 1881

8/8/7p/4K1kb/8/7R/7Q/8

#2

3 + 3

3757 Schachminiaturen I 1902
5206 Sam Loyd and His Chess Problems 1913
3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Rg3#
      • 2.Qg3#
      • 2.Qg2#
    • 1...Bg6
      • 2.Rg3#
      • 2.Qg1#
      • 2.Qg3#
      • 2.Qf4#
      • 2.Qg2#
    • 1...Bf7
      • 2.Rg3#
      • 2.Qg1#
      • 2.Qg3#
      • 2.Qg2#
    • 1...Be8
      • 2.Rg3#
      • 2.Qg1#
      • 2.Qg3#
      • 2.Qg2#
  • Tries
    • 1.Rxh5+?
      • 1...Kg4
        • 2.Qh3#
      • 1...Kg6!
    • 1.Qc2?
      • threat
        • 2.Qf5#
      • 1...Kg4
        • 2.Qf5#
        • 2.Qg2#
      • 1...Bg6
        • 2.Qg2#
      • 1...Bg4!
    • 1.Qd2+?
      • 1...Kg4
        • 2.Qg2#
      • 1...Kg6!
  • Keys
    • 1.Qa2!
      • 1...Kg4
        • 2.Qg2#
      • 1...Kg6
        • 2.Qg8#
      • 1...Bd1
        • 2.Qg8#
      • 1...Be2
        • 2.Qg8#
      • 1...Bf3
        • 2.Qg8#
      • 1...Bg4
        • 2.Qg8#
      • 1...Bg6
        • 2.Qg2#
      • 1...Bf7
        • 2.Qg2#
      • 1...Be8
        • 2.Qg2#

Anticipated by 28900(1873)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK,XB(b)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(b);N_GUARD,SBLOCK::QAR(A)
      • Refutation
        • B(b);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • B(b);N_GUARD::QAR(A)
      • B(b);N_GUARD,SBLOCK::QAR(A)
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