MESON Chess Problem Database

Problem Display
PID: 206373 (4K3/Q1p5/3N3B/1PpNkP2/3p4/3R4/8/8 w - - 0 1)

Kofman, Rafael Moiseevich

3/4 HM., Revista de Sah, 1925

4K3/Q1p5/3N3B/1PpNkP2/3p4/3R4/8/8

#2

8 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sxc7?
      • 1...Kxd6
        • 2.Bf4#
      • 1...c4
        • 2.Qxd4#
      • 1...Kf6!
  • Keys
    • 1.Se3!
      • 1...Kxd6
        • 2.Bf4#
      • 1...Kf6
        • 2.Sg4#
      • 1...dxe3
        • 2.Qa1#
      • 1...cxd6
        • 2.Qe7#
      • 1...c4
        • 2.Qxd4#
      • 1...c6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);XP(d)
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)::B(F)
        • P(b);OGATE::QAB1(G),XP(a)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(c);P_SPINP(a),S_FLIGHT,XS(E)::B(F)
      • K(c);S_FLIGHT::S(C)
      • P(a);OGATEB,XS(C)::QAB(G)
      • P(d);OGATE,XS(E)::QAR2(G)
      • P(b);OGATE::QAB1(G),XP(a)
      • P(d);OGATE::QAR2(G)
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