MESON Chess Problem Database

Problem Display
PID: 12377 (8/n4Kp1/R1bkNp2/4Np2/8/2P5/3B4/b3R2B w - - 0 1)

Banny, Dimitry Nikolaevich

1st Prize, Shakhmaty, 1978

8/n4Kp1/R1bkNp2/4Np2/8/2P5/3B4/b3R2B

#2

8 + 7

3750 FIDE Album (1977-1979) 1984
23 Die Schwalbe 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Rxc6#
    • 1...Sc8
      • 2.Rxc6#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Rd1#
      • 1...Sb5
        • 2.Rxc6#
      • 1...Bxc3!
    • 1.Rd1?
      • threat
        • 2.Bf4#
      • 1...Kxe5
        • 2.Bf4#
      • 1...Bxc3
        • 2.Bxc3#
      • 1...f4
        • 2.Bxf4#
      • 1...Sb5!
  • Keys
    • 1.Be3!
      • threat
        • 2.Bc5#
      • 1...Kxe5
        • 2.Bf4#
      • 1...fxe5
        • 2.Rd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD::R1(F),XB(c)
  • Tries
    • Try
      • B(C);
      • Threat
        • R(A)
      • Vars
        • S(f);N_GUARD::R1(F),XB(c)
      • Refutation
        • B(a);XP(D)
    • Try
      • R(A);
      • Threat
        • R(A)+B(C)
      • Vars
        • K(d);N_SPINB(c),S_FLIGHT,XS(E)::B(C)
        • B(a);OGATE,XP(D)::R(A)+B(C),XB(a)
        • P(b);::R(A)+B(C),XP(b)
      • Refutation
        • S(f);
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • K(d);N_SPINB(c),OGATEB,S_FLIGHT,XS(E)::R(A)+B(C),DCHECK
      • P(e);SBLOCK,XS(E)::R(A)
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