MESON Chess Problem Database

Problem Display
PID: 273797 (4B3/6pb/4QNrp/5pk1/8/5P1K/8/8 w - - 0 1)

Tasic, Milutin

Mat, 1972

4B3/6pb/4QNrp/5pk1/8/5P1K/8/8

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qe5#
  • Tries
    • 1.Se4+?
      • 1...Kh5
        • 2.Qxf5#
      • 1...fxe4
        • 2.Qe5#
      • 1...Kf4!
    • 1.Sd5?
      • 1...Kh5
        • 2.Qxf5#
      • 1...Rxe6
        • 2.f4#
      • 1...Rf6
        • 2.f4#
      • 1...Bg8
        • 2.Qxg6#
      • 1...f4
        • 2.Qg4#
        • 2.Qe5#
      • 1...h5!
    • 1.Sxh7+?
      • 1...Kh5
        • 2.Bxg6#
        • 2.Qxf5#
        • 2.Qxg6#
      • 1...Kf4!
    • 1.Qe3+?
      • 1...f4
        • 2.Qe5#
      • 1...Kxf6!
  • Keys
    • 1.Sh5!
      • 1...Kxh5
        • 2.Qxf5#
      • 1...Rxe6
        • 2.f4#
      • 1...Rf6
        • 2.f4#
      • 1...Bg8
        • 2.Qxg6#
      • 1...f4
        • 2.Qg4#
        • 2.Qd5#
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(a);OGATEB::QAR2(C)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINR(c)::QAR2(C),XP(a)
        • P(a);XS(D)::QAR2(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINR(c)::QAR2(C),XP(a)
        • R(c);XQ(C)::P(A)
        • R(c);::P(A)
        • B(f);N_GUARD::QAR1(C),XR(c)
      • Refutation
        • P(d);
    • Try
      • S(D);CHECK,XB(f)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • P(a);OGATEB,P_SPINP(a)::QAR2(C)
      • Refutation
        • K(b);S_FLIGHT,XS(D)
  • Actual
    • S(D);
    • Vars
      • K(b);N_GUARD,P-FLIGHT,P_SPINR(c),XS(D)::QAR2(C),XP(a)
      • R(c);XQ(C)::P(A)
      • R(c);::P(A)
      • B(f);N_GUARD::QAR1(C),XR(c)
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