MESON Chess Problem Database

Problem Display
PID: 150561 (8/4p3/8/6R1/8/5kNN/KQ1p2q1/5n1B w - - 0 1)

Adabashev, Mark Ivanovich

Die Schwalbe, 1936

8/4p3/8/6R1/8/5kNN/KQ1p2q1/5n1B

#2

6 + 5

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qc3#
    • 1...Sh2
      • 2.Qa3#
      • 2.Qc3#
      • 2.Qb3#
    • 1...d1Q
      • 2.Qf2#
    • 1...d1S
      • 2.Qe2#
    • 1...d1B
      • 2.Qf2#
    • 1...d1R
      • 2.Qe2#
      • 2.Qf2#
  • Tries
    • 1.Bxg2+?
      • 1...Ke3
        • 2.Qc3#
      • 1...Kxg2!
    • 1.Qd4?
      • threat
        • 2.Sg1#
        • 2.Qf2#
        • 2.Qe4#
        • 2.Qf4#
      • 1...d1Q+
        • 2.Qf2#
      • 1...d1B+
        • 2.Qf2#
      • 1...d1R+
        • 2.Qf2#
      • 1...Qxh1
        • 2.Qf2#
        • 2.Qe4#
      • 1...Sxg3
        • 2.Sg1#
        • 2.Qd3#
      • 1...Se3
        • 2.Qe4#
        • 2.Qf4#
      • 1...e5
        • 2.Sg1#
        • 2.Qf2#
        • 2.Qe4#
      • 1...d1S+!
    • 1.Qf6+?
      • 1...Ke3
        • 2.Qc3#
      • 1...exf6!
    • 1.Qxd2?
      • threat
        • 2.Sg1#
        • 2.Bxg2#
        • 2.Qe2#
        • 2.Qf2#
      • 1...Qxh1
        • 2.Qe2#
        • 2.Qf2#
      • 1...Sxg3
        • 2.Bxg2#
      • 1...Se3
        • 2.Qe2#
        • 2.Qf2#
      • 1...Sxd2!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qe4#
      • 1...Ke3
        • 2.Qc3#
      • 1...Sxg3
        • 2.Qd3#
      • 1...d1Q
        • 2.Qf2#
      • 1...d1S
        • 2.Qe2#
      • 1...d1B
        • 2.Qf2#
      • 1...d1R
        • 2.Qe2#
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINQ(c),P-FLIGHT::QAR2(C)
    • P(b);OGATE,P_PINQ(C)::QAR1(C)
    • P(b);OGATE,P_PINQ(C)::QAB1(C)
  • Tries
    • Try
      • B(A);CHECK,XQ(c)
      • Vars
        • K(d);P-FLIGHT::QAR2(C)
      • Refutation
        • K(d);P_SPINP(b),S_FLIGHT,XB(A)
    • Try
      • Q(C);
      • Threat
        • DUALS(4)
      • Vars
        • P(b);CHECK::QAR1(C)
      • Refutation
        • P(b);CHECK
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);N_SPINQ(c),P-FLIGHT::QAR2(C)
      • Refutation
        • P(e);XQ(C)
    • Try
      • Q(C);P_SPINQ(C),XP(b)
      • Threat
        • DUALS(4)
      • Vars
        • S(a);XS(D)::B(A),XQ(c)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);N_SPINQ(c),P-FLIGHT::QAR2(C)
      • S(a);N_GUARD,XS(D)::QAR2(C)
      • P(b);OGATE,P_PINQ(C)::QAR1(C)
      • P(b);OGATE,P_PINQ(C)::QAB1(C)
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