MESON Chess Problem Database

Problem Display
PID: 15245 (B2nK3/8/2rkN3/6Q1/8/8/8/8 w - - 0 1)

Kurtschatov, E

Sachove umeni (Ceskoslovensky sach), 1981

B2nK3/8/2rkN3/6Q1/8/8/8/8

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qd5#
    • 1...Rc2
      • 2.Qd5#
    • 1...Rc3
      • 2.Qd5#
    • 1...Rc4
      • 2.Qd5#
    • 1...Ra6
      • 2.Qd5#
    • 1...Rb6
      • 2.Qd5#
    • 1...Rc7
      • 2.Qd5#
    • 1...Rc8
      • 2.Qd5#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qe7#
      • 1...Kc7
        • 2.Qxd8#
      • 1...Rc7
        • 2.Qd5#
      • 1...Se6!
    • 1.Sxd8?
      • 1...Rc1
        • 2.Qe7#
      • 1...Rc2
        • 2.Qe7#
      • 1...Rc3
        • 2.Qe7#
      • 1...Rc4
        • 2.Qe7#
      • 1...Rc5
        • 2.Qe7#
      • 1...Ra6
        • 2.Qe7#
      • 1...Rb6
        • 2.Qe7#
      • 1...Rc7
        • 2.Qd5#
      • 1...Rc8
        • 2.Qe7#
      • 1...Kc7!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qe7#
      • 1...Kxc7
        • 2.Qxd8#
      • 1...Rxc7
        • 2.Qd5#
      • 1...Se6
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(a);::QAR1(A)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A),XS(c)
        • R(a);SBLOCK::QAR1(A)
      • Refutation
        • S(c);
    • Try
      • S(B);XS(c)
      • Vars
        • R(a);::QAB1(A)
        • R(a);SBLOCK::QAB1(A)
        • R(a);SBLOCK::QAR1(A)
        • R(a);P_PINS(B)::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT,XS(B)::QAB1(A),XS(c)
      • R(a);SBLOCK,XS(B)::QAR1(A)
      • S(c);SBLOCK::S(B)
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