MESON Chess Problem Database

Problem Display
PID: 109553 (8/p6p/R2pp2Q/1P2kp1P/1P6/1N6/pnKN3p/b6B w - - 0 1)

Tura, Waldemar

3rd HM., Scacchi e Scienze Applicate, 1990

8/p6p/R2pp2Q/1P2kp1P/1P6/1N6/pnKN3p/b6B

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Sc4#
    • 1...Sd3
      • 2.Sc4#
    • 1...Sa4
      • 2.Sc4#
    • 1...Sc4
      • 2.Sxc4#
    • 1...f4
      • 2.Qg5#
    • 1...d5
      • 2.Rxe6#
  • Tries
    • 1.Kc1?
      • 1...f4
        • 2.Qg5#
      • 1...Sd1
        • 2.Sc4#
      • 1...Sa4
        • 2.Sc4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...d5
        • 2.Rxe6#
      • 1...Sd3+!
    • 1.Rxd6?
      • threat
        • 2.Rxe6#
      • 1...f4
        • 2.Qxe6#
      • 1...Kxd6!
    • 1.Rxa7?
      • 1...f4
        • 2.Qg5#
      • 1...Sd1
        • 2.Sc4#
      • 1...Sd3
        • 2.Sc4#
      • 1...Sa4
        • 2.Sc4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...d5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sc6#
      • 1...Kxd4
        • 2.Qf4#
      • 1...f4
        • 2.Qg7#
      • 1...d5
        • 2.S4f3#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • S(c);N_GUARD::S(C)
    • S(c);N_GUARD::S(C),XS(c)
    • P(f);OGATEB::QAR2(I)
    • P(g);OGATE::R1(H),XP(h)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(f);OGATEB::QAR2(I)
        • S(c);N_GUARD::S(C)
        • S(c);N_GUARD::S(C),XS(c)
        • P(g);OGATE::R1(H),XP(h)
      • Refutation
        • S(c);CHECK
    • Try
      • R(H);XP(g)
      • Threat
        • R1(H),XP(h)
      • Vars
        • P(f);SBLOCK::QAR1(I),XP(h)
      • Refutation
        • K(e);P_SPINP(h),S_FLIGHT,XR(H)
    • Try
      • R(H);XP(i)
      • Vars
        • P(f);OGATEB::QAR2(I)
        • S(c);N_GUARD::S(C)
        • S(c);N_GUARD::S(C),XS(c)
      • Refutation
        • P(g);
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(e);S_FLIGHT,XS(D)::QAR2(I)
      • P(f);SBLOCK::QAB(I)
      • P(g);SBLOCK::S(D)
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