MESON Chess Problem Database

Problem Display
PID: 103202 (3N4/4p3/8/2p1kpP1/N1pR4/8/1Q2K3/8 w - - 0 1)

Maximov, Nikolai J

La Strategie, 1896

3N4/4p3/8/2p1kpP1/N1pR4/8/1Q2K3/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...e6
      • 2.Sc6#
      • 2.Sf7#
  • Tries
    • 1.Ke3?
      • threat
        • 2.Qb8#
      • 1...cxd4+
        • 2.Qxd4#
      • 1...f4+!
    • 1.Sxc5?
      • threat
        • 2.Sd7#
        • 2.Sc6#
        • 2.Sf7#
      • 1...c3
        • 2.Sc6#
      • 1...f4!
    • 1.Qd2?
      • threat
        • 2.Qe3#
        • 2.Qf4#
      • 1...f4
        • 2.Qxf4#
      • 1...cxd4!
  • Keys
    • 1.Sc3!
      • 1...Kxd4
        • 2.Sc6#
      • 1...cxd4
        • 2.Qb8#
      • 1...f4
        • 2.Rd5#
      • 1...e6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAB(A)
      • Vars
        • P(b);CHECK,OGATE,P_SPINP(b),XR(D)::QAB1(A),XP(b)
      • Refutation
        • P(d);CHECK
    • Try
      • S(C);XP(b)
      • Threat
        • DUALS(3)
      • Vars
        • P(a);::S(F)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::QAB1(A),XP(d)
      • Refutation
        • P(b);XR(D)
  • Actual
    • S(C);
    • Vars
      • K(c);S_FLIGHT,XR(D)::S(F)
      • P(b);SBLOCK,XR(D)::QAB(A)
      • P(d);SBLOCK::R1(D)
      • P(e);SBLOCK::S(F)
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