MESON Chess Problem Database

Problem Display
PID: 189827 (4b3/6K1/3N1P2/2N1k3/5p2/2q2B2/1Q6/6B1 w - - 0 1)

Gold, Zsigmund

Magyar Sakkvilag, 1912

4b3/6K1/3N1P2/2N1k3/5p2/2q2B2/1Q6/6B1

#2

7 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Qb8#
    • 1...Qd4
      • 2.Qxd4#
  • Tries
    • 1.Qe2+?
      • 1...Kxd6
        • 2.Qe7#
      • 1...Qe3!
  • Keys
    • 1.Be4!
      • threat
        • 2.Sc4#
      • 1...Kxd6
        • 2.Qb8#
      • 1...f3
        • 2.Qh2#
      • 1...Bb5
        • 2.Sf7#
      • 1...Bf7
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);N_SPINQ(a),OGATEB,P_PINP(F),S_FLIGHT,XS(E)::QAB(B)
    • Q(a);OGATE::QAB1(B),XQ(a)
  • Tries
    • Try
      • Q(B);CHECK,N_PINQ(a)
      • Vars
        • K(c);OGATE,P_PINP(F),S_FLIGHT,XS(E)::QAB1(B)
      • Refutation
        • Q(a);P_SPINQ(a)
  • Actual
    • B(C);
    • Threat
      • S(E)
    • Vars
      • K(c);N_SPINQ(a),OGATEB,P_PINP(F),S_FLIGHT,XS(E)::QAB(B)
      • P(b);OGATEB::QAB(B)
      • B(d);N_GUARD::S(E)
      • B(d);N_GUARD::S(E),XB(d)
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