MESON Chess Problem Database

Problem Display
PID: 68883 (8/B4K2/B7/4R3/2N1pk2/8/3n3P/1Q6 w - - 0 1)

Gorgias, Victor

The Chess Players' Quarterly Chronicle, 1871

8/B4K2/B7/4R3/2N1pk2/8/3n3P/1Q6

#2

7 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qxe4#
    • 1...Sb3
      • 2.Qxe4#
    • 1...Sf3
      • 2.Qxe4#
    • 1...Sxc4
      • 2.Qxe4#
    • 1...e3
      • 2.Qf5#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Qg3#
      • 1...Kg4
        • 2.Qg3#
      • 1...e3
        • 2.Qf5#
      • 1...Sf1
        • 2.Qxe4#
      • 1...Sf3
        • 2.Qxe4#
      • 1...exd3!
    • 1.Qe1?
      • threat
        • 2.Qg3#
      • 1...Kg4
        • 2.Qg3#
      • 1...Sf1
        • 2.Qxe4#
      • 1...Kf3!
  • Keys
    • 1.Se3!
      • threat
        • 2.Rf5#
      • 1...Kf3
        • 2.Rf5#
      • 1...Kxe5
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(a);N_GUARD::QAR1(A),XP(b)
    • S(a);N_GUARD,XS(C)::QAR1(A),XP(b)
    • P(b);OGATE::QAR1(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • P(b);OGATE::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XP(b)
      • Refutation
        • P(b);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XP(b)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • R1(D)
    • Vars
      • K(c);P-FLIGHT::R(D)
      • K(c);OGATEB,S_FLIGHT,XR(D)::QAB(A)
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