MESON Chess Problem Database

Problem Display
PID: 48139 (8/K2p2p1/BR1N4/1Qpkr3/6q1/6B1/4nb2/8 w - - 0 1)

Mukhortov, M

1st Comm., Shakhmaty v SSSR, 1946

8/K2p2p1/BR1N4/1Qpkr3/6q1/6B1/4nb2/8

#2

6 + 8

14752 Soviet Chess Compositions (1945-1947) 1949
4028 Presledovanie Temi 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd3#
    • 1...Qf3
      • 2.Qc4#
    • 1...Qh3
      • 2.Qc4#
    • 1...Qf5
      • 2.Qc4#
    • 1...Qh5
      • 2.Qc4#
    • 1...Qe6
      • 2.Qc4#
    • 1...Qxg3
      • 2.Qc4#
    • 1...Qc4
      • 2.Qxc4#
    • 1...Qg5
      • 2.Qc4#
    • 1...Qg6
      • 2.Qc4#
    • 1...Bd4
      • 2.Qc4#
    • 1...Sd4
      • 2.Qc4#
    • 1...Sf4
      • 2.Qc4#
  • Tries
    • 1.Qd3+?
      • 1...Qd4
        • 2.Bc4#
      • 1...Bd4
        • 2.Bc4#
        • 2.Qc4#
      • 1...Sd4
        • 2.Bc4#
        • 2.Qc4#
      • 1...Ke6!
    • 1.Qb3+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Qc4
        • 2.Qxc4#
      • 1...c4!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qc4#
      • 1...Kd4
        • 2.Qd3#
      • 1...Kxe4
        • 2.Qd3#
      • 1...Qxe4
        • 2.Qxd7#
      • 1...Rxe4
        • 2.Rd6#
      • 1...Bd4
        • 2.Bb7#
      • 1...Sd4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • K(e);N_SPINP(d),P-FLIGHT::QAR1(B)
    • Q(c);N_GUARD::QAB1(B)
    • Q(c);N_GUARD,SBLOCK::QAB1(B)
    • Q(c);N_GUARD,XB(A)::QAB1(B)
    • Q(c);N_GUARD::QAB1(B),XQ(c)
    • B(b);S_CUTQ(c)::QAB1(B)
    • S(a);S_CUTQ(c)::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK,N_PINP(d)
      • Vars
        • Q(c);P_SPINQ(c)::B(C)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(B);CHECK,N_PINP(d)
      • Vars
        • K(e);P-FLIGHT::QAR1(B)
        • Q(c);N_GUARD,P_SPINQ(c)::QAB1(B),XQ(c)
      • Refutation
        • P(d);P_PINR(D),P_SPINP(d)
  • Actual
    • S(E);
    • Threat
      • QAB1(B)
    • Vars
      • K(e);N_SPINP(d),P-FLIGHT::QAR1(B)
      • K(e);N_SPINP(d),S_FLIGHT,XS(E)::QAB1(B)
      • Q(c);N_GUARD,SBLOCK,XS(E)::QAR2(B),XP(g)
      • R(f);SBLOCK,XS(E)::R1(D)
      • B(b);SBLOCK::B(C)
      • S(a);N_GUARD,SBLOCK::S(E)
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