MESON Chess Problem Database

Problem Display
PID: 144863 (3N4/4p3/b4p2/2QpkB1P/8/6K1/8/8 w - - 0 1)

Campos, P (jr)

Source?, 0000

3N4/4p3/b4p2/2QpkB1P/8/6K1/8/8

#2

5 + 5

15 British Chess Magazine 1899
5454 Near Snap 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Kg4?
      • threat
        • 2.Sc6#
        • 2.Sf7#
      • 1...Bb5
        • 2.Sf7#
      • 1...Bb7
        • 2.Sf7#
      • 1...Be2+!
    • 1.Qe3+?
      • 1...Kxf5
        • 2.Qf4#
      • 1...Kd6!
    • 1.Qb4?
      • threat
        • 2.Qf4#
      • 1...Kxf5
        • 2.Qf4#
      • 1...d4
        • 2.Qc5#
      • 1...Bc4!
    • 1.Qc3+?
      • 1...Kd6
        • 2.Sf7#
      • 1...d4
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Qc7+?
      • 1...Kxf5
        • 2.Qf4#
      • 1...Kd4!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Sc6#
      • 1...Kxf5
        • 2.Qf4#
      • 1...Kd6
        • 2.Sf7#
      • 1...d4
        • 2.Qc5#

This anticipates 52594(1960)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::S(E)
      • Refutation
        • B(c);CHECK
    • Try
      • Q(B);CHECK,N_PINP(a)
      • Vars
        • K(b);P-FLIGHT,XB(C)::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);N_PINP(a)
      • Threat
        • QAB1(B)
      • Vars
        • K(b);P-FLIGHT,XB(C)::QAR1(B)
        • P(a);OGATEB::QAR2(B)
      • Refutation
        • B(c);
    • Try
      • Q(B);CHECK,N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::S(E)
        • P(a);OGATEB,P_SPINP(a)::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • Q(B);CHECK,N_PINP(a)
      • Vars
        • K(b);OGATE,P-FLIGHT,XB(C)::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(B);N_PINP(a)
    • Threat
      • QAB1(B)
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);P-FLIGHT,XB(C)::QAR1(B)
      • P(a);OGATEB::QAR2(B)
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