MESON Chess Problem Database

Problem Display
PID: 32431 (8/4r1pB/3p3r/4Bnb1/3P1pNp/1R2Pkp1/2Q1N1n1/2K3R1 w - - 0 1)

Kofman, Rafael Moiseevich

De Problemist, 1928

8/4r1pB/3p3r/4Bnb1/3P1pNp/1R2Pkp1/2Q1N1n1/2K3R1

#2

10 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Sh2+?
      • 1...Kf2
        • 2.Rf1#
      • 1...gxh2!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Sc3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kxg4
        • 2.Sxf4#
      • 1...Sgxe3
        • 2.Sxg3#
      • 1...Sfxe3
        • 2.Sxf4#
      • 1...Sxd4
        • 2.Sxd4#
      • 1...fxe3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);P-FLIGHT::R1(B)
      • Refutation
        • P(c);XS(H)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)+S(D)
    • Vars
      • K(b);P_SPINS(f),S_FLIGHT::S(D)
      • K(b);S_FLIGHT,XS(H)::QAB(C)+S(D),XP(d)
      • S(a);P_SPINS(a),XP(F)::QAB(C)+S(D),XP(c)
      • S(f);P_SPINS(f),XP(F)::QAB(C)+S(D),XP(d)
      • S(f);XP(G)::QAB(C)+S(D),DCHECK,XS(f)
      • P(d);P_SPINP(d),XP(F)::QAB(C)+S(D),XP(c)
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