MESON Chess Problem Database

Problem Display
PID: 157984 (k2K2R1/r7/B7/8/3B4/8/4Q3/8 w - - 0 1)

Abdullayev, Suleyman

Problemist Ukraini 11. TT, 2014

k2K2R1/r7/B7/8/3B4/8/4Q3/8

#2

5 + 2

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa6
      • 2.Kc7#
    • 1...Rc7
      • 2.Kxc7#
    • 1...Rd7+
      • 2.Kxd7#
    • 1...Re7
      • 2.Kxe7#
  • Tries
    • 1.Qf3+?
      • 1...Rb7
        • 2.Qxb7#
      • 1...Kb8!
    • 1.Qc4?
      • threat
        • 2.Qc8#
      • 1...Rd7+
        • 2.Kxd7#
      • 1...Kb8
        • 2.Qc8#
      • 1...Rc7
        • 2.Kxc7#
      • 1...Rb7!
    • 1.Qg4?
      • threat
        • 2.Qc8#
      • 1...Rd7+
        • 2.Kxd7#
      • 1...Kb8
        • 2.Qc8#
      • 1...Rc7
        • 2.Kxc7#
      • 1...Rb7!
    • 1.Qc2?
      • threat
        • 2.Qc8#
      • 1...Rd7+
        • 2.Kxd7#
      • 1...Kb8
        • 2.Qc8#
      • 1...Rc7
        • 2.Kxc7#
      • 1...Rb7!
    • 1.Qg2+?
      • 1...Rb7
        • 2.Qxb7#
      • 1...Kb8!
    • 1.Qe4+?
      • 1...Rb7
        • 2.Qxb7#
      • 1...Kb8!
    • 1.Qe6?
      • threat
        • 2.Qc8#
      • 1...Rd7+
        • 2.Kxd7#
      • 1...Kb8
        • 2.Qc8#
      • 1...Rc7
        • 2.Kxc7#
      • 1...Rb7!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qxa7#
      • 1...Rd7+
        • 2.Kxd7#
      • 1...Kb8
        • 2.Qxa7#
      • 1...Rxa6
        • 2.Kc7#
      • 1...Rxe7
        • 2.Kxe7#
      • 1...Rb7
        • 2.Qxb7#
      • 1...Rc7
        • 2.Kxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);XB(C)::R(E)+K(D)
    • R(a);::R(E)+K(D),XR(a)
    • R(a);CHECK::R(E)+K(D),XR(a)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(A),XR(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • R(a);CHECK::R(E)+K(D),XR(a)
        • K(b);P-FLIGHT::QAR1(A)
        • R(a);::R(E)+K(D),XR(a)
      • Refutation
        • R(a);
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • R(a);CHECK::R(E)+K(D),XR(a)
        • K(b);P-FLIGHT::QAR1(A)
        • R(a);::R(E)+K(D),XR(a)
      • Refutation
        • R(a);
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • R(a);CHECK::R(E)+K(D),XR(a)
        • K(b);P-FLIGHT::QAR1(A)
        • R(a);::R(E)+K(D),XR(a)
      • Refutation
        • R(a);
    • Try
      • Q(A);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(A),XR(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(A),XR(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • R(a);CHECK::R(E)+K(D),XR(a)
        • K(b);P-FLIGHT::QAR1(A)
        • R(a);::R(E)+K(D),XR(a)
      • Refutation
        • R(a);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XR(a)
    • Vars
      • R(a);CHECK::R(E)+K(D),XR(a)
      • K(b);P-FLIGHT::QAB1(A),XR(a)
      • R(a);XB(C)::R(E)+K(D)
      • R(a);XQ(A)::R(E)+K(D),XR(a)
      • R(a);N_GUARD::QAB1(A),XR(a)
      • R(a);::R(E)+K(D),XR(a)
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