MESON Chess Problem Database

Problem Display
PID: 187710 (6K1/4Q3/8/5kNp/4pppr/1P2p1R1/1r2B3/b7 w - - 0 1)

Lurje, SI

Chess Weekly, 1909

6K1/4Q3/8/5kNp/4pppr/1P2p1R1/1r2B3/b7

#2

6 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qxe4+?
      • 1...Kf6
        • 2.Sh7#
      • 1...Kxg5!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sxh4#
        • 2.Qf7#
      • 1...Kg6
        • 2.Qg5#
        • 2.Qe6#
      • 1...Rxe2
        • 2.Sxh4#
      • 1...Rxb3
        • 2.Sxh4#
      • 1...exf3
        • 2.Bd3#
      • 1...fxg3
        • 2.Qf7#
      • 1...gxf3
        • 2.Rg5#
      • 1...Rb1
        • 2.Sxh4#
      • 1...Ra2
        • 2.Sxh4#
      • 1...Rc2
        • 2.Sxh4#
      • 1...Rd2
        • 2.Sxh4#
      • 1...Rh1
        • 2.Qf7#
      • 1...Rh2
        • 2.Qf7#
      • 1...Rh3
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK,XP(d)
      • Vars
        • K(h);P-FLIGHT::S(D)
      • Refutation
        • K(h);P-FLIGHT,P_SPINP(f),XS(D)
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • R(b);XB(A)::S(D),XR(g)
      • R(b);XP(B)::S(D),XR(g)
      • P(d);OGATEB,XS(D)::B(A)
      • P(e);XR(C)::QAR2(E)
      • P(f);OGATE,XS(D)::R1(C)
      • R(b);::S(D),XR(g)
      • R(g);::QAR2(E)
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