MESON Chess Problem Database

Problem Display
PID: 73860 (8/5p2/5P2/6Q1/8/1B1kN3/P7/4K3 w - - 0 1)

Anonymous

Tijdschrift vd KNSB, 1938

8/5p2/5P2/6Q1/8/1B1kN3/P7/4K3

#2

6 + 2

5454 Near Snap 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1?
      • threat
        • 2.Qe3#
        • 2.Qd5#
      • 1...Kd4
        • 2.Qe3#
        • 2.Qd5#
      • 1...Ke4!
    • 1.Sf1?
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Qd2#
      • 1...Kd4
        • 2.Qe3#
      • 1...Ke4!
    • 1.Sg4?
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Qd2#
      • 1...Kd4
        • 2.Qe3#
      • 1...Ke4!
    • 1.Sd5?
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qe3#
      • 1...Ke4!
    • 1.Sf5?
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ke4!
    • 1.Qd5+?
      • 1...Kc3
        • 2.Qd2#
      • 1...Kxe3!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Qd2#
      • 1...Kd4
        • 2.Qe3#
      • 1...Ke4
        • 2.Qd5#

Anticipated by 175712(1898)

This anticipates 103790(1986)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • QAR1(E)
    • Vars
      • K(a);P-FLIGHT::QAB1(E)
      • K(a);S_FLIGHT::QAB1(E)
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