MESON Chess Problem Database

Problem Display
PID: 121419 (8/8/6K1/p2k4/3N1p2/1P1N1P2/3P1Q2/8 w - - 0 1)

Marco, Michael

Wiener Schachzeitung, 1901

(First published on Tue Jan 1 1901)

8/8/6K1/p2k4/3N1p2/1P1N1P2/3P1Q2/8

#2

7 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qe1?
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Qe4#
      • 1...Kd6!
    • 1.Qe2?
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Qe4#
      • 1...Kd6!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qd8#
      • 1...Kxd4
        • 2.Qd8#
      • 1...Kd6
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(c);P-FLIGHT,XS(F)::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(c);P-FLIGHT,XS(F)::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAR(B)
    • Vars
      • K(c);P-FLIGHT,P_SPINP(a),XS(F)::QAR(B)
      • K(c);P-FLIGHT::QAR2(B)
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