MESON Chess Problem Database

Problem Display
PID: 92882 (6K1/8/3pB3/5pQp/2p1k3/2p3nR/4b2B/4N1rN w - - 0 1)

Lazdinits, Eriks

1st Prize, Schackvarlden, 1934

6K1/8/3pB3/5pQp/2p1k3/2p3nR/4b2B/4N1rN

#2

7 + 9

721 Variantim 1992
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bxg1?
      • threat
        • 2.Qe3#
      • 1...Sf1
        • 2.Qxf5#
      • 1...f4
        • 2.Bd5#
        • 2.Qd5#
      • 1...Ke5!
    • 1.Rh4+?
      • 1...Ke5
        • 2.Qxf5#
      • 1...f4
        • 2.Qxf4#
      • 1...Bg4!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Qe3#
      • 1...Kd3
        • 2.Bxf5#
      • 1...Kf3
        • 2.Bd5#
      • 1...Ke5
        • 2.Qxf5#
      • 1...Sxh1
        • 2.Re3#
      • 1...Sf1
        • 2.Sf2#
      • 1...f4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);XR(a)
      • Threat
        • QAR1(E)
      • Vars
        • S(d);N_GUARD::QAB1(E),XP(g)
      • Refutation
        • K(f);P-FLIGHT,P_SPINP(g)
    • Try
      • R(D);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINP(g),P_SPINS(d)::QAR1(E),XP(g)
        • P(g);P_SPINP(g)::QAR1(E),XP(g)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • S(A);
    • Threat
      • QAR1(E)
    • Vars
      • K(f);P_SPINS(d),S_FLIGHT::B(F),XP(g)
      • K(f);P_SPINS(d),S_FLIGHT::B(F)
      • K(f);P-FLIGHT,P_SPINP(g),P_SPINS(d)::QAR1(E),XP(g)
      • S(d);OGATE,P_PINQ(E),XS(B)::R1(D)
      • S(d);P_PINQ(E)::S(B)
      • P(g);OGATE,SBLOCK::QAB1(E)
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