MESON Chess Problem Database

Problem Display
PID: 28914 (8/1K2P3/1N3Q2/1Bk5/1R4r1/p2nNp2/1Bn4b/3q4 w - - 0 1)

Aleshin, Igor Alexandrovich

2nd HM., Shakhmaty v SSSR, 1946

8/1K2P3/1N3Q2/1Bk5/1R4r1/p2nNp2/1Bn4b/3q4

#2

8 + 8

461 Schach-Express 1948
14752 Soviet Chess Compositions (1945-1947) 1949
3105 FIDE Album (1945-1955) 1964
3195 idee & form 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4
      • 2.Qc6#
  • Tries
    • 1.Ba4?
      • threat
        • 2.Rb5#
      • 1...Kxb4
        • 2.Qc3#
      • 1...Rxb4
        • 2.Qc6#
      • 1...Scxb4
        • 2.Sd7#
      • 1...Sd4
        • 2.Rc4#
      • 1...Sdxb4!
    • 1.Bc6?
      • threat
        • 2.Rb5#
      • 1...Kxb4
        • 2.Qc3#
      • 1...Scxb4
        • 2.Sd7#
      • 1...Sdxb4
        • 2.Sa4#
      • 1...Sd4
        • 2.Rc4#
      • 1...Rxb4!
    • 1.Bd7?
      • threat
        • 2.Rb5#
      • 1...Kxb4
        • 2.Qc3#
      • 1...Rxb4
        • 2.Qc6#
      • 1...Sdxb4
        • 2.Sa4#
      • 1...Sd4
        • 2.Rc4#
      • 1...Scxb4!
    • 1.Be8?
      • threat
        • 2.Rb5#
      • 1...Kxb4
        • 2.Qc3#
      • 1...Rxb4
        • 2.Qc6#
      • 1...Sdxb4
        • 2.Sa4#
      • 1...Sd4
        • 2.Rc4#
      • 1...Scxb4!
  • Keys
    • 1.Ba6!
      • threat
        • 2.Rb5#
      • 1...Kxb4
        • 2.Qc3#
      • 1...Rxb4
        • 2.Qc6#
      • 1...Scxb4
        • 2.Sd7#
      • 1...Sdxb4
        • 2.Sa4#
      • 1...Sd4
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(g);SBLOCK,XR(C)::QAR1(F)
  • Tries
    • Try
      • B(D);
      • Threat
        • R1(C)
      • Vars
        • K(h);S_FLIGHT,XR(C)::QAB1(F)
        • R(g);P_PINS(E),SBLOCK,XR(C)::QAR1(F)
        • S(b);SBLOCK,XR(C)::S(E)
        • S(b);S_CUTR(g)::R1(C)
      • Refutation
        • S(e);XR(C)
    • Try
      • B(D);
      • Threat
        • R1(C)
      • Vars
        • K(h);S_FLIGHT,XR(C)::QAB1(F)
        • S(b);SBLOCK,XR(C)::S(E)
        • S(e);SBLOCK,XR(C)::S(E)
        • S(b);S_CUTR(g)::R1(C)
      • Refutation
        • R(g);P_PINS(E),XR(C)
    • Try
      • B(D);
      • Threat
        • R1(C)
      • Vars
        • K(h);S_FLIGHT,XR(C)::QAB1(F)
        • R(g);P_PINS(E),SBLOCK,XR(C)::QAR1(F)
        • S(e);SBLOCK,XR(C)::S(E)
        • S(b);S_CUTR(g)::R1(C)
      • Refutation
        • S(b);XR(C)
    • Try
      • B(D);
      • Threat
        • R1(C)
      • Vars
        • K(h);S_FLIGHT,XR(C)::QAB1(F)
        • R(g);P_PINS(E),SBLOCK,XR(C)::QAR1(F)
        • S(e);SBLOCK,XR(C)::S(E)
        • S(b);S_CUTR(g)::R1(C)
      • Refutation
        • S(b);XR(C)
  • Actual
    • B(D);
    • Threat
      • R1(C)
    • Vars
      • K(h);S_FLIGHT,XR(C)::QAB1(F)
      • R(g);P_PINS(E),SBLOCK,XR(C)::QAR1(F)
      • S(b);SBLOCK,XR(C)::S(E)
      • S(e);SBLOCK,XR(C)::S(E)
      • S(b);S_CUTR(g)::R1(C)
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