MESON Chess Problem Database

Problem Display
PID: 104541 (3Q4/3B2K1/8/3pk3/4N3/8/6N1/8 w - - 0 1)

Picotte, Romeo

La Presse, 1930

3Q4/3B2K1/8/3pk3/4N3/8/6N1/8

#2

5 + 2

6490 yacpdb 2009
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Bc6?
      • threat
        • 2.Qxd5#
      • 1...Kd4
        • 2.Qxd5#
      • 1...Kxe4
        • 2.Qxd5#
      • 1...Ke6
        • 2.Qf6#
      • 1...dxe4
        • 2.Qf6#
        • 2.Qd5#
      • 1...d4
        • 2.Qf6#
        • 2.Qd5#
      • 1...Kf5!
    • 1.Be6?
      • threat
        • 2.Qxd5#
      • 1...Kd4
        • 2.Qxd5#
      • 1...Kxe4
        • 2.Qxd5#
      • 1...dxe4
        • 2.Qd5#
      • 1...d4
        • 2.Qd5#
      • 1...Kxe6!
    • 1.Qg5+?
      • 1...Kxe4
        • 2.Qe3#
      • 1...Kd4!
  • Keys
    • 1.Qb6!
      • 1...Kxe4
        • 2.Qe3#
      • 1...dxe4
        • 2.Qc5#
      • 1...d4
        • 2.Qe6#

This anticipates 149816(1974), 16231(2000)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR1(E),XP(a)
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAR1(E),XP(a)
        • K(b);P-FLIGHT,P_SPINP(a),XS(B)::QAB1(E),XP(a)
        • K(b);P-FLIGHT::QAR1(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR1(E),XP(a)
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAR1(E),XP(a)
        • K(b);P-FLIGHT,XS(B)::QAB1(E),XP(a)
        • P(a);XS(B)::QAR1(E)
        • P(a);::QAR1(E)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(B)::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(b);OGATEB,P-FLIGHT,XS(B)::QAR1(E)
      • P(a);OGATEB,SBLOCK,XS(B)::QAR2(E)
      • P(a);SBLOCK::QAR1(E)
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