MESON Chess Problem Database

Problem Display
PID: 138934 (3k2K1/R3ppR1/2Q5/8/6pp/1n6/qn3p2/b1rr4 w - - 0 1)

Pribyl, Vaclav

HM., Sachove umeni (Ceskoslovensky sach), 1964

3k2K1/R3ppR1/2Q5/8/6pp/1n6/qn3p2/b1rr4

#2

4 + 12

23 Die Schwalbe 1965
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Ra8#
    • 1...Rb1
      • 2.Qa8#
    • 1...Re1
      • 2.Qd7#
    • 1...Rf1
      • 2.Qd7#
    • 1...Rg1
      • 2.Qd7#
    • 1...Rh1
      • 2.Qd7#
    • 1...Rd7
      • 2.Qxd7#
    • 1...Sd3
      • 2.Qd7#
    • 1...Sa4
      • 2.Ra8#
    • 1...Sc4
      • 2.Qa8#
    • 1...Sd2
      • 2.Qd7#
    • 1...Sd4
      • 2.Qd7#
    • 1...Sa5
      • 2.Ra8#
    • 1...Sc5
      • 2.Qa8#
  • Tries
    • 1.Qc7+?
      • 1...Ke8
        • 2.Qxe7#
      • 1...Rxc7!
  • Keys
    • 1.Kh8!
      • threat
        • 2.Rg8#
      • 1...Sd3
        • 2.Qd7#
      • 1...Sa4
        • 2.Ra8#
      • 1...Sc4
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(d);N_GUARD::R(B)
    • R(b);N_GUARD::QAR(A)
    • R(c);N_GUARD::QAR1(A)
    • R(c);N_GUARD::QAR1(A),XR(c)
    • S(e);S_CUTR(c)::QAR1(A)
    • S(e);S_CUTQ(d)::R(B)
    • S(e);S_CUTR(b)::QAR(A)
    • S(g);S_CUTR(c)::QAR1(A)
    • S(g);S_CUTQ(d)::R(B)
    • S(g);S_CUTR(b)::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(l);P-FLIGHT::QAR1(A),XP(j)
      • Refutation
        • R(b);XQ(A)
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • R(C)
    • Vars
      • S(e);P_PINR(C),S_CUTR(c)::QAR1(A)
      • S(e);P_PINR(C),S_CUTQ(d)::R(B)
      • S(e);P_PINR(C),S_CUTR(b)::QAR(A)
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