MESON Chess Problem Database

Problem Display
PID: 104707 (8/4R3/4B3/4N3/1Q1B3K/8/4k3/8 w - - 0 1)

Riczu, Lajos

Dunaujvarosi TS, 1964-1965

8/4R3/4B3/4N3/1Q1B3K/8/4k3/8

#2

6 + 1

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kg3?
      • 1...Kf1
        • 2.Bc4#
      • 1...Kd1!
    • 1.Kh3?
      • 1...Kf1
        • 2.Bc4#
      • 1...Kd1!
    • 1.Sf3?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf1
        • 2.Bh3#
      • 1...Kd3
        • 2.Bf5#
      • 1...Kxf3!
    • 1.Sg6?
      • 1...Kf1
        • 2.Bh3#
      • 1...Kd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Bd5#
      • 1...Kd1!
    • 1.Rc7?
      • 1...Kd1
        • 2.Bg4#
      • 1...Kf1!
    • 1.Rg7?
      • 1...Kf1
        • 2.Bc4#
      • 1...Kd1!
    • 1.Qd2+?
      • 1...Kf1
        • 2.Bh3#
        • 2.Bc4#
        • 2.Rf7#
        • 2.Qf2#
      • 1...Kxd2!
    • 1.Qc3?
      • 1...Kd1
        • 2.Bg4#
      • 1...Kf1!
  • Keys
    • 1.Sd3!
      • 1...Kd1
        • 2.Bb3#
      • 1...Kf1
        • 2.Bh3#
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Bd5#

Anticipated by 169934(1945), 18404(1955)

This anticipates 93179(1965), 86816(1992), 162980(2012)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::B(E)
      • K(a);S_FLIGHT,XS(D)::B(E)
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