MESON Chess Problem Database

Problem Display
PID: 9606 (B7/8/8/1k6/7R/8/K7/4Q3 w - - 0 1)

Puig y Puig, Esteban

Skakbladet, 1906

B7/8/8/1k6/7R/8/K7/4Q3

#2

4 + 1

70 American Chess Problemist 1950
2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
3713 Snap 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qb4#
  • Tries
    • 1.Bb7?
      • threat
        • 2.Qb4#
      • 1...Kc5
        • 2.Qb4#
      • 1...Kb6!
    • 1.Rh5+?
      • 1...Ka4
        • 2.Bc6#
        • 2.Ra5#
        • 2.Qh4#
        • 2.Qa5#
        • 2.Qe4#
      • 1...Ka6
        • 2.Qa5#
      • 1...Kb6
        • 2.Qa5#
      • 1...Kc4!
    • 1.Qb1+?
      • 1...Kc5
        • 2.Qb4#
      • 1...Ka6
        • 2.Ra4#
      • 1...Ka5!
    • 1.Qe6?
      • 1...Kc5
        • 2.Qc6#
      • 1...Ka5!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Qb4#
        • 2.Qa5#
      • 1...Kxa4
        • 2.Bc6#
      • 1...Kc5
        • 2.Qb4#
      • 1...Kb6
        • 2.Qa5#

This anticipates 3048(1917)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAB1(A)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
        • K(a);S_FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);S_FLIGHT,XR(C)::B(D)
      • K(a);P-FLIGHT::QAB1(A)
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