MESON Chess Problem Database

Problem Display
PID: 149227 (Q1r5/1n2n3/1B6/r1R5/2Nk4/8/2BK4/8 w - - 0 1)

Zurutuza, Imanol

Best Problems, 2010

Q1r5/1n2n3/1B6/r1R5/2Nk4/8/2BK4/8

#2

6 + 5

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxa1#
    • 1...Rc7
      • 2.Qh8#
    • 1...Rh8
      • 2.Qxh8#
    • 1...Sxc5
      • 2.Qe4#
    • 1...Sd8
      • 2.Qe4#
  • Tries
    • 1.Rb5+?
      • 1...Kxc4
        • 2.Bd3#
      • 1...Sc5
        • 2.Qe4#
      • 1...Rc5!
    • 1.Qxb7?
      • threat
        • 2.Qe4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sc6
        • 2.Qd7#
      • 1...Rc6!
  • Keys
    • 1.Se3!
      • threat
        • 2.Rd5#
      • 1...Raxc5
        • 2.Qa1#
      • 1...Rcxc5
        • 2.Qh8#
      • 1...Sxc5
        • 2.Qe4#
      • 1...Sd5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(b);OGATE::QAB(F),XR(b)
    • R(e);OGATE::QAB(F)
    • R(e);OGATE::QAB(F),XR(e)
    • S(c);OGATE,P_SPINS(c),XR(D)::QAR1(F)
    • S(c);OGATE::QAR1(F)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT,XS(C)::B(A)
        • S(c);OGATE,P_SPINS(c)::QAR1(F)
      • Refutation
        • R(e);P_SPINR(e)
    • Try
      • Q(F);XS(c)
      • Threat
        • QAR1(F)
      • Vars
        • S(d);N_GUARD::QAR1(F),XS(d)
        • S(d);N_GUARD::QAR(F)
      • Refutation
        • R(e);
  • Actual
    • S(C);
    • Threat
      • B(E)+R(D),DCHECK
    • Vars
      • R(b);OGATE,P_SPINR(b),XR(D)::QAB(F)
      • R(e);OGATE,P_SPINR(e),XR(D)::QAB(F)
      • S(c);OGATE,P_SPINS(c),XR(D)::QAR1(F)
      • S(d);::B(E)+R(D),DCHECK,XS(d)
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