MESON Chess Problem Database

Problem Display
PID: 243462 (6Q1/5B2/2pKn3/B2np3/P1k5/3R4/8/2N5 w - - 0 1)

Buchwald, Julius

Chess World (The), 1947

6Q1/5B2/2pKn3/B2np3/P1k5/3R4/8/2N5

#2

7 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Rc3#
  • Tries
    • 1.Bxe6?
      • 1...c5
        • 2.Bxd5#
      • 1...e4!
    • 1.Qb8?
      • threat
        • 2.Qb3#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sd4
        • 2.Rc3#
        • 2.Qb4#
      • 1...Sc5
        • 2.Qb4#
      • 1...Sb6!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qa2#
      • 1...Sb4
        • 2.Qe4#
      • 1...Sc3
        • 2.Qxc6#
      • 1...Sd4
        • 2.Rc3#
      • 1...Sc5
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(e);P_SPINS(b),SBLOCK::R1(B)
  • Tries
    • Try
      • B(F);P_PINS(b),XS(e)
      • Vars
        • P(d);N_GUARD::B(F),XS(b)
      • Refutation
        • P(c);
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • S(b);N_GUARD,P_SPINS(e)::QAR1(G),XS(b)
        • S(e);P_SPINS(b)::QAR1(G)
      • Refutation
        • S(b);P_SPINS(e)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • S(b);P_SPINS(e)::QAR2(G)
      • S(b);OGATE,P_SPINS(e)::QAR2(G),XP(d)
      • S(e);P_SPINS(b),SBLOCK::R1(B)
      • S(e);P_SPINS(b)::QAR2(G)
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