MESON Chess Problem Database

Problem Display
PID: 41487 (8/8/4N2K/1P2p3/4k2p/r2npn2/Q3N1P1/8 w - - 0 1)

Kosek, Wojtech

Bohemia, 1907

8/8/4N2K/1P2p3/4k2p/r2npn2/Q3N1P1/8

#2

6 + 7

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...h3
      • 2.Sg3#
  • Tries
    • 1.Kg6?
      • 1...Rxa2
        • 2.Sc3#
      • 1...Rb3
        • 2.Qa8#
      • 1...Sc1
        • 2.Sc5#
      • 1...Sde1
        • 2.Sc5#
      • 1...Sb2
        • 2.Sc5#
      • 1...Sf2
        • 2.Sc5#
      • 1...Sb4
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Rc3
        • 2.Sxc3#
      • 1...Ra4
        • 2.Sc3#
      • 1...Ra5
        • 2.Sc3#
      • 1...Ra6
        • 2.Sc3#
      • 1...Ra7
        • 2.Sc3#
      • 1...Ra8
        • 2.Sc3#
        • 2.Qxa8#
      • 1...Sfe1
        • 2.Sg5#
        • 2.Qc4#
      • 1...Sg1
        • 2.Sg5#
        • 2.Qc4#
      • 1...Sd2
        • 2.Sg5#
      • 1...Sh2
        • 2.Sg5#
        • 2.Qc4#
      • 1...Sd4
        • 2.Sg5#
      • 1...Sg5
        • 2.Sxg5#
        • 2.Qc4#
      • 1...h3
        • 2.Sg3#
      • 1...Sf4+!
    • 1.Sc5+?
      • 1...Kf5
        • 2.Qe6#
      • 1...Sxc5!
    • 1.Sg5+?
      • 1...Kf5
        • 2.Qe6#
      • 1...Sxg5!
  • Keys
    • 1.g4!
      • 1...Rxa2
        • 2.Sc3#
      • 1...hxg4 ep
        • 2.Sxg3#
      • 1...Rb3
        • 2.Qa8#
      • 1...Sc1
        • 2.Sc5#
      • 1...Sde1
        • 2.Sc5#
      • 1...Sb2
        • 2.Sc5#
      • 1...Sf2
        • 2.Sc5#
      • 1...Sb4
        • 2.Sc5#
      • 1...Sf4
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Sfe1
        • 2.Sg5#
      • 1...Sg1
        • 2.Sg5#
      • 1...Sd2
        • 2.Sg5#
      • 1...Sh2
        • 2.Sg5#
      • 1...Sd4
        • 2.Sg5#
      • 1...Sg5
        • 2.Sxg5#
      • 1...Rc3
        • 2.Sxc3#
      • 1...Ra4
        • 2.Sc3#
      • 1...Ra5
        • 2.Sc3#
      • 1...Ra6
        • 2.Sc3#
      • 1...Ra7
        • 2.Sc3#
      • 1...Ra8
        • 2.Sc3#
        • 2.Qxa8#
      • 1...h3
        • 2.Sg3#

There are these versions: 119770

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 21
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD::S(B)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • R(a);N_GUARD,XQ(A)::S(B)
        • R(a);OGATE::QAB(A)
        • S(b);N_GUARD::S(E)
        • S(b);N_GUARD::S(E),XS(b)
        • R(a);N_GUARD::S(B),XR(a)
        • R(a);N_GUARD::S(B)
        • R(a);N_GUARD,P_PINS(E)::S(B)
        • S(d);N_GUARD::S(E)
        • P(f);N_GUARD::S(B)
      • Refutation
        • S(b);CHECK
    • Try
      • S(E);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(A)
      • Refutation
        • S(b);XS(E)
    • Try
      • S(E);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(A)
      • Refutation
        • S(d);XS(E)
  • Actual
    • P(C);
    • Vars
      • R(a);N_GUARD,XQ(A)::S(B)
      • P(f);EP,N_GUARD,XP(C)::S(B),XP(f)
      • R(a);OGATE::QAB(A)
      • S(b);N_GUARD::S(E)
      • S(b);N_GUARD::S(E),XS(b)
      • S(d);N_GUARD::S(E)
      • S(d);N_GUARD::S(E),XS(d)
      • R(a);N_GUARD::S(B),XR(a)
      • R(a);N_GUARD::S(B)
      • R(a);N_GUARD,P_PINS(E)::S(B)
      • P(f);N_GUARD::S(B)
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