MESON Chess Problem Database

Problem Display
PID: 225931 (3n2R1/5p1n/1Rb5/5kNp/p4p1P/6p1/1B2Q3/3K4 w - - 0 1)

Pedersen, Iver O

Skakbladet, 1943

3n2R1/5p1n/1Rb5/5kNp/p4p1P/6p1/1B2Q3/3K4

#2

7 + 9

2048 Tuxens skakopgaver (Leif C Schmidt) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Bb5
      • 2.Rxb5#
    • 1...Sxg5
      • 2.Rxg5#
  • Tries
    • 1.Sxf7?
      • threat
        • 2.Sd6#
        • 2.Sh6#
        • 2.Qe5#
      • 1...f3
        • 2.Qe5#
      • 1...Be4
        • 2.Sh6#
      • 1...Bf3
        • 2.Sd6#
        • 2.Sh6#
      • 1...Sg5
        • 2.Sd6#
        • 2.Sh6#
        • 2.Rxg5#
      • 1...Sb7
        • 2.Sh6#
        • 2.Qe5#
      • 1...Sxf7!
    • 1.Sxh7?
      • threat
        • 2.Rg5#
        • 2.Qe5#
      • 1...f3
        • 2.Qe5#
      • 1...Be4
        • 2.Rf6#
        • 2.Rg5#
        • 2.Qxh5#
      • 1...Bf3
        • 2.Rf6#
        • 2.Rg5#
      • 1...Se6
        • 2.Qe5#
      • 1...f6!
    • 1.Rb5+?
      • 1...Bd5
        • 2.Rxd5#
      • 1...Bxb5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qe5#
      • 1...Be4
        • 2.Sg7#
      • 1...Bf3
        • 2.Sd4#
      • 1...Sg5
        • 2.Rxg5#
      • 1...f6
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD::R(F),XB(f)
    • S(h);OGATE,XS(E)::R1(G),XS(h)
  • Tries
    • Try
      • S(E);XP(g)
      • Threat
        • DUALS(3)
      • Vars
        • P(c);::QAR1(C)
        • B(f);::S(E)
      • Refutation
        • S(i);XS(E)
    • Try
      • S(E);XS(h)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAR1(C)
        • S(i);::QAR1(C)
      • Refutation
        • P(g);
    • Try
      • R(F);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R(F),XB(f)
      • Refutation
        • B(f);XR(F)
  • Actual
    • S(E);
    • Threat
      • QAR1(C)
    • Vars
      • B(f);::S(E)
      • B(f);P_PINQ(C)::S(E)
      • S(h);N_GUARD::R1(G),XS(h)
      • P(g);SBLOCK::S(E)
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