MESON Chess Problem Database

Problem Display
PID: 93436 (b3Q3/2pR2P1/1r1b3K/6p1/N1pkBNR1/8/2P2P2/2nn4 w - - 0 1)

Veders, Visvaldis M

Shakhmaty v SSSR, 1948

b3Q3/2pR2P1/1r1b3K/6p1/N1pkBNR1/8/2P2P2/2nn4

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Se2#
    • 1...Se2
      • 2.Sxe2#
    • 1...Sb3
      • 2.Se2#
    • 1...Sd3
      • 2.Se2#
    • 1...Sb2
      • 2.c3#
    • 1...Se3
      • 2.c3#
    • 1...c6
      • 2.Rxd6#
  • Keys
    • 1.Bd5!
      • threat
        • 2.Qe4#
      • 1...Ba3+
        • 2.Sg6#
      • 1...Bb4+
        • 2.Sg6#
      • 1...Bxf4+
        • 2.Bc6#
      • 1...Bc5+
        • 2.Sg6#
      • 1...Be5+
        • 2.Se6#
      • 1...Be7+
        • 2.Sg6#
      • 1...Bf8+
        • 2.Sg6#
      • 1...Bxd5
        • 2.Se2#
      • 1...Sxf2
        • 2.c3#
      • 1...Sc3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 7
  • Sets
    • S(a);N_GUARD::S(E)
    • S(a);N_GUARD::S(E),XS(a)
    • S(b);N_GUARD::P(A)
    • P(h);N_GUARD,S_CUTB(i),S_CUTR(f)::R(H),XB(g)
  • Actual
    • B(D);N_PINB(g)
    • Threat
      • QAR1(J)
    • Vars
      • B(g);CHECK,N_GUARD::R(F)+S(E)
      • B(g);CHECK,OGATEB,P_SPINB(g),XS(E)::R(H)+B(D)
      • B(g);CHECK,SBLOCK::R(F)+S(E),DCHECK
      • B(g);CHECK,N_GUARD,P_PINP(I)::R(F)+S(E)
      • B(i);SBLOCK,XB(D)::R(F)+S(E),DCHECK
      • S(b);N_GUARD,XP(B)::P(A)
      • S(b);N_GUARD::QAB1(J)
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