MESON Chess Problem Database

Problem Display
PID: 31204 (4KR2/3p4/3p4/2B5/pN1rk1p1/r7/3p2n1/5Q2 w - - 0 1)

Trcala, Stanislav

Lidove noviny, 1909

4KR2/3p4/3p4/2B5/pN1rk1p1/r7/3p2n1/5Q2

#2

5 + 9

3437 Stanislav Trcala Sachovy odkaz 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qf5#
    • 1...Re3
      • 2.Qf5#
    • 1...Rd3
      • 2.Qf5#
    • 1...Rxb4
      • 2.Qf5#
    • 1...Rc4
      • 2.Qf5#
    • 1...Se1
      • 2.Qf4#
    • 1...Se3
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sh4
      • 2.Qf4#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qxd4#
        • 2.Qe7#
      • 1...Ke3
        • 2.Qe7#
      • 1...Rxb4
        • 2.Qf5#
      • 1...dxc5
        • 2.Qe7#
      • 1...Sf4
        • 2.Qxf4#
      • 1...d1Q
        • 2.Qe7#
      • 1...d1R
        • 2.Qe7#
      • 1...Rad3
        • 2.Qe7#
      • 1...Rdd3
        • 2.Qe7#
        • 2.Qf5#
      • 1...Rc4
        • 2.Qe7#
        • 2.Qf5#
      • 1...Rd5!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qe7#
      • 1...Ke3
        • 2.Qe7#
      • 1...Ke5
        • 2.Qf5#
        • 2.Qe7#
      • 1...Rxb4
        • 2.Qf5#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Rd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • K(f);P-FLIGHT::QAR1(A)
    • R(c);SBLOCK::QAB1(A)
    • R(e);::QAB1(A)
    • R(e);XS(B)::QAB1(A)
    • S(b);N_GUARD::QAR1(A)
    • S(b);N_GUARD::QAR1(A),XS(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);P-FLIGHT,P_SPINR(e)::QAR(A)
        • R(e);XS(B)::QAB1(A)
        • P(h);XB(C)::QAR(A)
        • S(b);N_GUARD::QAR1(A),XS(b)
        • P(a);::QAR(A)
        • R(c);::QAR(A)
      • Refutation
        • R(e);
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • K(f);P-FLIGHT,P_SPINR(e)::QAR(A)
      • R(e);XS(B)::QAB1(A)
      • S(b);N_GUARD::QAR1(A),XS(b)
      • R(e);N_GUARD::QAB1(A),XR(e)
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