MESON Chess Problem Database

Problem Display
PID: 7672 (b3R3/8/1K2P1n1/3RPN1q/2p1kp1P/1BPpN2P/Q5PB/3r4 w - - 0 1)

Banny, Dimitry Nikolaevich

1st Prize, Slovensky Dennik, 1992

b3R3/8/1K2P1n1/3RPN1q/2p1kp1P/1BPpN2P/Q5PB/3r4

#2

14 + 8

3705 Album Russia (1992-1994) 2000
3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe5
      • 2.Rd4#
    • 1...d2
      • 2.Bc2#
      • 2.Qc2#
    • 1...cxb3
      • 2.Qa4#
    • 1...f3
      • 2.Rd4#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Sd6#
      • 1...Qxf5
        • 2.Qf3#
      • 1...fxe3
        • 2.Rd4#
      • 1...Bxd5!
    • 1.Qa5?
      • threat
        • 2.Rd4#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...fxe3
        • 2.Sd6#
      • 1...Qxf5!
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Scd6#
      • 1...Kxd5
        • 2.Qxa8#
      • 1...Kxf5
        • 2.Sd6#
      • 1...Qxf5
        • 2.Rd4#
      • 1...Bxd5
        • 2.Sfd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(g);SBLOCK,XP(J)::R1(I)
    • P(c);OGATEB,XB(D)::QAR(A)
    • P(e);::R1(I)
  • Tries
    • Try
      • Q(A);
      • Threat
        • S(K)
      • Vars
        • Q(f);N_GUARD,XS(K)::QAB1(A)
        • P(e);XS(F)::R1(I)
      • Refutation
        • B(h);XR(I)
    • Try
      • Q(A);
      • Threat
        • R1(I)
      • Vars
        • B(h);OGATE,XR(I)::QAB1(A),XB(h)
        • P(e);SBLOCK,XS(F)::S(K)
      • Refutation
        • Q(f);XS(K)
  • Actual
    • S(F);XP(c)
    • Threat
      • S(F)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(I)::QAB(A),XB(h)
      • K(d);S_FLIGHT,XS(K)::S(F)
      • Q(f);SBLOCK,XS(K)::R1(I)
      • B(h);SBLOCK,XR(I)::S(K)
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