MESON Chess Problem Database

Problem Display
PID: 67445 (2B5/8/8/1K1Nk1B1/8/3p4/8/n6Q w - - 0 1)

Retter, Yosef

Variantim, 2005

2B5/8/8/1K1Nk1B1/8/3p4/8/n6Q

#2

5 + 3

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bf6#
    • 1...Kd6
      • 2.Bf4#
  • Tries
    • 1.Kc5?
      • threat
        • 2.Bf4#
        • 2.Bf6#
        • 2.Qe1#
      • 1...Sc2
        • 2.Bf4#
        • 2.Bf6#
      • 1...d2
        • 2.Bf4#
        • 2.Bf6#
      • 1...Sb3+!
    • 1.Se3?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qh2#
      • 1...Kd4!
    • 1.Sb4?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qh2#
      • 1...Kd4!
    • 1.Sb6?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qh2#
      • 1...Kd4!
    • 1.Sf6?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qxa1#
      • 1...Kd6!
    • 1.Sc7?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qh2#
      • 1...Kd4!
    • 1.Se7?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qh2#
      • 1...Kd4!
    • 1.Qe4+?
      • 1...Kd6
        • 2.Bf4#
        • 2.Be7#
        • 2.Qe6#
      • 1...Kxe4!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qh8#
      • 1...Kd6
        • 2.Qh2#

Anticipated by 133796(1984-1988)

FEATURES

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