MESON Chess Problem Database

Problem Display
PID: 198872 (1K6/7b/3B4/8/1pPk1p2/npR4Q/2pp1N2/8 w - - 0 1)

Kintzig, Robert

Bekes Sakk, 1921

1K6/7b/3B4/8/1pPk1p2/npR4Q/2pp1N2/8

#2

6 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Qxd3#
    • 1...Be4
      • 2.Qh8#
    • 1...Bf5
      • 2.Qh8#
    • 1...Bg6
      • 2.Qh8#
    • 1...Bg8
      • 2.Qd3#
      • 2.Qh8#
  • Tries
    • 1.Rd3+?
      • 1...Bxd3
        • 2.Qxd3#
      • 1...Kxc4!
    • 1.Qe6?
      • threat
        • 2.Qe5#
        • 2.Qf6#
      • 1...Kxc3
        • 2.Be5#
      • 1...Sxc4
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Bd3
        • 2.Rxd3#
        • 2.Qe5#
      • 1...bxc3!
    • 1.Qxh7?
      • threat
        • 2.Qd3#
        • 2.Qg7#
        • 2.Qh8#
      • 1...Sxc4
        • 2.Rd3#
        • 2.Qd3#
      • 1...bxc3
        • 2.Qd3#
        • 2.Qe4#
      • 1...c1S
        • 2.Qg7#
        • 2.Qh8#
      • 1...d1Q
        • 2.Qg7#
        • 2.Qh8#
      • 1...d1R
        • 2.Qg7#
        • 2.Qh8#
      • 1...Kxc3!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qh8#
      • 1...Kxc3
        • 2.Be5#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...bxc3
        • 2.Qc5#
      • 1...Bd3
        • 2.Rxd3#
      • 1...Bg8
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(h);N_GUARD::QAR1(C),XB(h)
    • B(h);OGATE::QAB(C)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • B(h);OGATE,XR(B)::QAR1(C),XB(h)
      • Refutation
        • K(f);P-FLIGHT,XP(D)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);S_FLIGHT,XR(B)::B(E)
      • Refutation
        • P(e);XR(B)
    • Try
      • Q(C);XB(h)
      • Threat
        • DUALS(3)
      • Refutation
        • K(f);S_FLIGHT,XR(B)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • K(f);S_FLIGHT,XR(B)::B(E)
      • S(c);OGATE,XP(D)::QAR1(C),XS(c)
      • P(e);SBLOCK,XR(B)::QAB1(C)
      • B(h);N_GUARD::R1(B),XB(h)
      • B(h);N_GUARD::R1(B)
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