MESON Chess Problem Database

Problem Display
PID: 154885 (2N5/8/2K5/8/k4B2/2Q5/P7/1r6 w - - 0 1)

Tar, Gabor Zoltan

Die Schwalbe, 2014

2N5/8/2K5/8/k4B2/2Q5/P7/1r6

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sb6#
    • 1...Rc1
      • 2.Sb6#
    • 1...Rd1
      • 2.Sb6#
    • 1...Re1
      • 2.Sb6#
    • 1...Rf1
      • 2.Sb6#
    • 1...Rg1
      • 2.Sb6#
    • 1...Rh1
      • 2.Sb6#
    • 1...Rb6+
      • 2.Sxb6#
  • Tries
    • 1.Bc1?
      • threat
        • 2.Qa3#
      • 1...Rb6+
        • 2.Sxb6#
      • 1...Rxc1
        • 2.Sb6#
      • 1...Rb3
        • 2.axb3#
      • 1...Rb2!
    • 1.Bd2?
      • threat
        • 2.Qa5#
      • 1...Rb6+
        • 2.Sxb6#
      • 1...Rb4
        • 2.Qxb4#
      • 1...Rc1
        • 2.Sb6#
      • 1...Rb5!
    • 1.Qb3+?
      • 1...Ka5
        • 2.Qa3#
      • 1...Rxb3!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Qa3#
      • 1...Rb6+
        • 2.Sxb6#
      • 1...Rb4
        • 2.Qxb4#
      • 1...Rc1
        • 2.Sb6#
      • 1...Rb3
        • 2.axb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD::S(E)
    • R(a);N_GUARD,P_PINQ(B)::S(E)
    • R(a);CHECK,N_GUARD::S(E),XR(a)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR1(B)
      • Vars
        • R(a);CHECK,N_GUARD::S(E),XR(a)
        • R(a);N_GUARD,P_PINQ(B),XB(C)::S(E)
        • R(a);OGATE::P(A),XR(a)
      • Refutation
        • R(a);
    • Try
      • B(C);
      • Threat
        • QAR1(B)
      • Vars
        • R(a);CHECK,N_GUARD::S(E),XR(a)
        • R(a);N_GUARD::QAR1(B),XR(a)
        • R(a);N_GUARD,P_PINQ(B)::S(E)
      • Refutation
        • R(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • R(a);XQ(B)
  • Actual
    • B(C);
    • Threat
      • QAR1(B)
    • Vars
      • R(a);CHECK,N_GUARD::S(E),XR(a)
      • R(a);N_GUARD::QAR1(B),XR(a)
      • R(a);N_GUARD,P_PINQ(B)::S(E)
      • R(a);OGATE::P(A),XR(a)
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