MESON Chess Problem Database

Problem Display
PID: 150005 (n7/2BK4/8/3k4/2NrNP2/2RrQ3/8/8 w - - 0 1)

Abdullayev, Elmar

Shakhmatnaya kompozitsiya, 2012

n7/2BK4/8/3k4/2NrNP2/2RrQ3/8/8

#2

7 + 4

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Sf6#
    • 1...Sb6+
      • 2.Sxb6#
    • 1...Sxc7
      • 2.Sb6#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Sf6#
      • 1...Sb6+
        • 2.Sxb6#
      • 1...Rxe4
        • 2.Qc5#
      • 1...Rxc3!
    • 1.Rxd3?
      • threat
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Sb6+
        • 2.Sxb6#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Kxc4+!
    • 1.Qxd3?
      • threat
        • 2.Se3#
      • 1...Sb6+
        • 2.Sxb6#
      • 1...Rxd3!
  • Keys
    • 1.Bb6!
      • threat
        • 2.Sf6#
      • 1...Sxb6+
        • 2.Sxb6#
      • 1...Rxc3
        • 2.Qxd4#
      • 1...Rxe4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(b);XS(C)::S(D)
    • S(d);CHECK,N_GUARD::S(C),XS(d)
    • S(d);N_GUARD,XB(F)::S(C)
  • Tries
    • Try
      • B(F);
      • Threat
        • S(D)
      • Vars
        • S(d);CHECK,N_GUARD::S(C),XS(d)
        • R(b);OGATE,SBLOCK,XS(D)::QAR1(B)
      • Refutation
        • R(a);XR(A)
    • Try
      • R(A);P_PINR(b),XR(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(d);CHECK,N_GUARD::S(C),XS(d)
        • R(b);N_SPINR(b),OGATE,XR(A)::QAR2(B),XR(b)
      • Refutation
        • K(c);CHECK,N_SPINR(b),S_FLIGHT,XS(C)
    • Try
      • Q(B);P_PINR(b),XR(a)
      • Threat
        • S(C)
      • Vars
        • S(d);CHECK,N_GUARD::S(C),XS(d)
      • Refutation
        • R(b);N_SPINR(b),XQ(B)
  • Actual
    • B(F);
    • Threat
      • S(D)
    • Vars
      • S(d);CHECK,XB(F)::S(C),XS(d)
      • R(a);N_GUARD,XR(A)::QAR1(B),XR(b)
      • R(b);OGATE,SBLOCK,XS(D)::QAR1(B)
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