MESON Chess Problem Database

Problem Display
PID: 101271 (8/5np1/4p2b/3Nk2r/6Rp/B7/2K5/5Q2 w - - 0 1)

Vesz, Tibor

Good Companions, 1922

8/5np1/4p2b/3Nk2r/6Rp/B7/2K5/5Q2

#2

5 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qb5#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qa1#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Bxe3!
    • 1.Re4+?
      • 1...Kxd5
        • 2.Qc4#
      • 1...Kxe4!
    • 1.Qe2+?
      • 1...Kxd5
        • 2.Qb5#
        • 2.Qe4#
      • 1...Kf5
        • 2.Qe4#
      • 1...Be3!
    • 1.Qe1+?
      • 1...Kxd5
        • 2.Qe4#
      • 1...Kf5
        • 2.Qe4#
      • 1...Be3!
    • 1.Qf4+?
      • 1...Kxd5
        • 2.Qe4#
      • 1...Bxf4!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Re4#
      • 1...gxf6
        • 2.Qb5#
      • 1...Rf5
        • 2.Qa1#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sd6
        • 2.Bb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(b);OGATEB,P-FLIGHT,XS(E)::QAR2(A)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB(A)
      • Vars
        • B(e);N_GUARD::QAB1(A),XB(e)
      • Refutation
        • B(e);XS(E)
    • Try
      • R(D);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(E)::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,XR(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • B(e);P_SPINB(e)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(E)::QAB1(A)
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • B(e);P_SPINB(e)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(E)::QAB1(A)
      • Refutation
        • B(e);XQ(A)
  • Actual
    • S(E);
    • Threat
      • R1(D)
    • Vars
      • P(g);SBLOCK,XS(E)::QAR(A)
      • R(c);SBLOCK::QAB(A)
      • B(e);N_GUARD::QAB1(A),XB(e)
      • S(f);S_CUTB(e)::QAB1(A)
      • S(f);SBLOCK::B(C)
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