MESON Chess Problem Database

Problem Display
PID: 45255 (2KN4/p1nRpPb1/5Pp1/4k1B1/3pNR2/r6r/4B2p/4Q3 w - - 0 1)

Pribyl, Vaclav

2nd HM., Szachy, 1958

2KN4/p1nRpPb1/5Pp1/4k1B1/3pNR2/r6r/4B2p/4Q3

#2

10 + 10

3976 FIDE Album (1956-1958) 1961

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Sc6#
    • 1...e6
      • 2.Sc6#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Sc4#
      • 1...Ra4
        • 2.Bf3#
      • 1...Rhc3
        • 2.Bd3#
      • 1...Rac3!
    • 1.Sf2?
      • threat
        • 2.Sg4#
      • 1...Rag3
        • 2.Bf3#
      • 1...Rh4
        • 2.Bd3#
      • 1...Rhg3!
    • 1.Bg4?
      • threat
        • 2.Sc6#
      • 1...Ra6
        • 2.Sg3#
      • 1...Rhc3
        • 2.Sxc3#
      • 1...Rh8
        • 2.Sc3#
      • 1...Rac3!
    • 1.Qa5+?
      • 1...Sb5
        • 2.Qxb5#
      • 1...Sd5
        • 2.Rxd5#
        • 2.Rxe7#
        • 2.Qxd5#
      • 1...Rxa5!
    • 1.f8S?
      • threat
        • 2.Sc6#
        • 2.Sf7#
        • 2.Sxg6#
      • 1...Rac3
        • 2.Sf7#
        • 2.Sxg6#
      • 1...Ra6
        • 2.Sf7#
        • 2.Sxg6#
      • 1...Rhc3
        • 2.Sf7#
        • 2.Sxg6#
      • 1...Rh6
        • 2.Sc6#
        • 2.Sf7#
      • 1...Bxf8!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Sc6#
      • 1...Ra6
        • 2.Sg3#
      • 1...Rh8
        • 2.Sc3#
      • 1...Sd5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(h);SBLOCK::S(J)
    • P(i);SBLOCK::S(J)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • R(b);N_GUARD::QAR(A)+B(B)
        • R(c);N_GUARD::QAR(A)+B(B)
      • Refutation
        • R(b);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • R(b);N_GUARD::QAR(A)+B(B)
        • R(c);N_GUARD::QAR(A)+B(B)
      • Refutation
        • R(c);
    • Try
      • B(B);
      • Threat
        • S(J)
      • Vars
        • R(b);N_GUARD::QAR(A)+S(C)
        • R(c);N_GUARD::QAR(A)+S(C),XR(c)
        • R(c);N_GUARD,P_PINS(J)::QAR(A)+S(C)
      • Refutation
        • R(b);
    • Try
      • Q(A);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAR(A),XS(h)
      • Refutation
        • R(b);XQ(A)
    • Try
      • P(H);
      • Threat
        • DUALS(3)
      • Refutation
        • B(j);XS(H)
  • Actual
    • B(B);
    • Threat
      • S(J)
    • Vars
      • R(b);N_GUARD::QAR(A)+S(C)
      • R(c);N_GUARD,P_PINS(J)::QAR(A)+S(C)
      • S(h);N_GUARD::R1(G),XS(h)
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