MESON Chess Problem Database

Problem Display
PID: 174911 (1N6/8/8/pk6/p1Nr4/P2PB3/Q7/2K5 w - - 0 1)

Drnek, Josef

Nove parizske mody, 1901

1N6/8/8/pk6/p1Nr4/P2PB3/Q7/2K5

#2

7 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4+
      • 2.Qxc4#
      • 2.dxc4#
    • 1...Re4
      • 2.Sd6#
      • 2.Qb1#
      • 2.Qb2#
    • 1...Rf4
      • 2.Sd6#
      • 2.Qb1#
      • 2.Qb2#
    • 1...Rg4
      • 2.Sd6#
      • 2.Qb1#
      • 2.Qb2#
    • 1...Rh4
      • 2.Sd6#
      • 2.Qb1#
      • 2.Qb2#
    • 1...Rd5
      • 2.Qb1#
      • 2.Qb2#
    • 1...Rd6
      • 2.Sxd6#
      • 2.Qb1#
      • 2.Qb2#
    • 1...Rd7
      • 2.Qb1#
      • 2.Qb2#
    • 1...Rd8
      • 2.Qb1#
      • 2.Qb2#
  • Tries
    • 1.Qg2?
      • threat
        • 2.Qc6#
      • 1...Kc5
        • 2.Qc6#
        • 2.Qg5#
      • 1...Re4
        • 2.Sd6#
        • 2.Qb2#
      • 1...Rd5
        • 2.Qxd5#
        • 2.Qb2#
      • 1...Rd6
        • 2.Sxd6#
        • 2.Qb2#
      • 1...Rxc4+!
  • Keys
    • 1.Qe2!
      • 1...Rxc4+
        • 2.dxc4#
      • 1...Kc5
        • 2.Qh5#
      • 1...Rxd3
        • 2.Sd6#
      • 1...Re4
        • 2.Sd6#
        • 2.Qb2#
      • 1...Rf4
        • 2.Sd6#
        • 2.Qb2#
      • 1...Rg4
        • 2.Sd6#
        • 2.Qb2#
      • 1...Rh4
        • 2.Sd6#
        • 2.Qb2#
      • 1...Rd5
        • 2.Qb2#
      • 1...Rd6
        • 2.Sxd6#
        • 2.Qb2#
      • 1...Rd7
        • 2.Qb2#
      • 1...Rd8
        • 2.Qb2#

This is a version of 5134

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Refutation
        • R(b);CHECK,XS(F)
  • Actual
    • Q(B);
    • Vars
      • R(b);CHECK,OGATE,XS(F)::P(D),XR(b)
      • K(d);P-FLIGHT,P_SPINR(b)::QAR(B)
      • R(b);N_GUARD,XP(D)::S(F)
      • R(b);::QAR(B)
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