MESON Chess Problem Database

Problem Display
PID: 165339 (8/8/8/8/8/k2n4/NnB5/K1Q5 w - - 0 1)

Abdullayev, Suleyman

Problemist Ukraini 18. TT, 2017

8/8/8/8/8/k2n4/NnB5/K1Q5

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qxb2#
    • 1...Sf2
      • 2.Qxb2#
    • 1...Sb4
      • 2.Qxb2#
    • 1...Sf4
      • 2.Qxb2#
    • 1...Sc5
      • 2.Qxb2#
    • 1...Se5
      • 2.Qxb2#
  • Tries
    • 1.Kb1?
      • 1...Se1
        • 2.Qxb2#
      • 1...Sf2
        • 2.Qxb2#
      • 1...Sb4
        • 2.Qxb2#
      • 1...Sf4
        • 2.Qxb2#
      • 1...Sc5
        • 2.Qxb2#
      • 1...Se5
        • 2.Qxb2#
      • 1...Sxc1!
    • 1.Bd1?
      • threat
        • 2.Qc3#
      • 1...Sc5
        • 2.Qxb2#
        • 2.Qxc5#
      • 1...Sxc1!
    • 1.Qd2?
      • threat
        • 2.Qc3#
      • 1...Sd1
        • 2.Qa5#
      • 1...Sc1
        • 2.Qb4#
        • 2.Qd6#
      • 1...Sc5
        • 2.Qb4#
      • 1...Sa4!
    • 1.Qe3?
      • 1...Sd1
        • 2.Qa7#
      • 1...Sc4
        • 2.Qxd3#
      • 1...Sa4!
  • Keys
    • 1.Qb1!
      • 1...Sa4
        • 2.Qb3#
      • 1...Sd1
        • 2.Qb3#
      • 1...Sc4
        • 2.Qb3#
      • 1...Sc1
        • 2.Qxb2#
      • 1...Se1
        • 2.Qxb2#
      • 1...Sf2
        • 2.Qxb2#
      • 1...Sb4
        • 2.Qxb2#
      • 1...Sf4
        • 2.Qxb2#
      • 1...Sc5
        • 2.Qxb2#
      • 1...Se5
        • 2.Qxb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAB1(B),XS(a)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • S(c);N_GUARD::QAB1(B),XS(a)
      • Refutation
        • S(c);N_SPINS(a),XQ(B)
    • Try
      • B(D);
      • Threat
        • QAR2(B)
      • Refutation
        • S(c);N_SPINS(a),XQ(B)
    • Try
      • Q(B);N_PINS(a)
      • Threat
        • QAR2(B)
      • Vars
        • S(a);N_GUARD::QAR2(B)
        • S(c);N_GUARD::QAB1(B)
      • Refutation
        • S(a);
    • Try
      • Q(B);N_PINS(a),P_PINS(c)
      • Vars
        • S(a);N_GUARD::QAR(B)
        • S(a);N_GUARD::QAR(B),XS(c)
      • Refutation
        • S(a);
  • Actual
    • Q(B);N_PINS(a)
    • Vars
      • S(a);OGATE::QAR1(B)
      • S(c);N_GUARD::QAB1(B),XS(a)
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