MESON Chess Problem Database

Problem Display
PID: 138059 (8/1K1p4/1p4br/1kppN3/pBp2nR1/P6r/1Q5q/2RN1B2 w - - 0 1)

Kuznetsov, Aleksandr Petrovich

2nd HM., Kubbel MT, 1945-1946

8/1K1p4/1p4br/1kppN3/pBp2nR1/P6r/1Q5q/2RN1B2

#2

9 + 12

14752 Soviet Chess Compositions (1945-1947) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Bc3#
    • 1...Qg3
      • 2.Bc3#
    • 1...Qh1
      • 2.Bc3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...R3h4
      • 2.Sc3#
      • 2.Bd2#
    • 1...R3h5
      • 2.Sc3#
      • 2.Bd2#
    • 1...Bd3
      • 2.Sc3#
      • 2.Bd2#
    • 1...Se2
      • 2.Bc3#
    • 1...Sg2
      • 2.Bc3#
    • 1...Sd3
      • 2.Sc3#
    • 1...cxb4
      • 2.Qxb4#
    • 1...d4
      • 2.Bxc4#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Sa7#
      • 1...cxb4
        • 2.Qxb4#
      • 1...dxc6!
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Sd6#
      • 1...cxb4
        • 2.Qxb4#
      • 1...dxc4
        • 2.Bxc4#
      • 1...Bd3
        • 2.Bd2#
      • 1...Se2
        • 2.Bc3#
      • 1...Sd3
        • 2.Sc3#
      • 1...d6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::QAR(D)+B(F)
    • R(b);N_GUARD::S(B),XR(b)
    • S(e);N_SPINP(d),S_CUTQ(a)::QAR(D)+B(F)
    • S(e);S_CUTQ(a)::QAR(D)+B(F)
    • S(e);N_SPINP(d),S_CUTR(b)::S(B)
    • P(g);N_SPINP(d),OGATE,P_SPINP(g),XB(F)::QAR1(D),XP(g)
    • P(h);N_GUARD::B(C),XP(d)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • P(g);N_SPINP(d),OGATE,P_SPINP(g),XB(F)::QAR1(D),XP(g)
      • Refutation
        • P(l);XS(H)
  • Actual
    • S(H);XP(d)
    • Threat
      • B(C)+S(H),DCHECK
    • Vars
      • P(g);OGATE,P_SPINP(g),XB(F)::QAR1(D),XP(g)
      • P(h);OGATE,P_SPINP(h),XS(H)::B(C),XP(h)
      • B(j);S_CUTR(b)::QAR(D)+B(F)
      • S(e);S_CUTQ(a)::QAR(D)+B(F)
      • S(e);S_CUTR(b)::S(B)
      • P(l);::B(C)+S(H),DCHECK,XP(l)
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