MESON Chess Problem Database

Problem Display
PID: 147699 (Q6B/R5q1/1N6/8/4b1R1/1k1P1p2/1P6/3K4 w - - 0 1)

Toth, Joszef

L'Italia Scacchistica, 1931

Q6B/R5q1/1N6/8/4b1R1/1k1P1p2/1P6/3K4

#2

8 + 4

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Ra3+?
      • 1...Kb4
        • 2.Qa5#
      • 1...Kxb2!
  • Keys
    • 1.Rb7!
      • threat
        • 2.Qa3#
      • 1...Kxb2
        • 2.Sd5#
      • 1...Kb4
        • 2.Sd7#
      • 1...Qxb2
        • 2.Sd5#
        • 2.Qa4#
      • 1...Qf8
        • 2.Qa4#
      • 1...Qe7
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINB(c)::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT,P_SPINQ(d),XP(B)
  • Actual
    • R(F);
    • Threat
      • QAR1(G)
    • Vars
      • K(a);P-FLIGHT,P_SPINQ(d),XP(B)::R(F)+S(E)
      • K(a);P-FLIGHT,P_SPINB(c)::R(F)+S(E)
      • Q(d);::QAB1(G)
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