MESON Chess Problem Database

Problem Display
PID: 186669 (1n6/8/1Q4N1/Np1k4/1p4P1/1r2P2K/B2bR3/n5B1 w - - 0 1)

Mere, S

Chess, 1960

1n6/8/1Q4N1/Np1k4/1p4P1/1r2P2K/B2bR3/n5B1

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.e4#
    • 1...Sa6
      • 2.Qc6#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Sd7
      • 2.Qc6#
  • Tries
    • 1.Kg2?
      • threat
        • 2.e4#
      • 1...Ke4
        • 2.Qd4#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Bxe3!
    • 1.Sf4+?
      • 1...Ke5
        • 2.Qd4#
        • 2.Qe6#
      • 1...Ke4!
    • 1.Bxb3+?
      • 1...Sxb3
        • 2.e4#
      • 1...Ke4!
    • 1.Qe6+?
      • 1...Kc5
        • 2.Sb7#
      • 1...Kxe6!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qf5#
      • 1...Kc5
        • 2.Qd4#
      • 1...Bc3
        • 2.e4#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sd7
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(b);N_PINP(D)::P(D)
    • S(g);N_GUARD::QAB1(H)
    • S(g);N_GUARD::QAB1(H),XS(g)
  • Tries
    • Try
      • K(E);N_SPINP(D),S_FLIGHT
      • Threat
        • P(D)
      • Vars
        • K(f);N_SPINR(c),S_FLIGHT::QAR1(H)
        • S(g);N_GUARD::QAB1(H),XS(g)
      • Refutation
        • B(b);XP(D)
    • Try
      • S(I);CHECK
      • Refutation
        • K(f);N_SPINR(c),S_FLIGHT
    • Try
      • B(B);CHECK,N_SPINP(D),XR(c)
      • Vars
        • S(a);XB(B)::P(D)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(f);N_SPINR(c),P-FLIGHT::S(G)
      • Refutation
        • K(f);S_FLIGHT,XQ(H)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • K(f);N_SPINR(c),S_FLIGHT::QAB1(H)
      • K(f);N_SPINR(c),P-FLIGHT::QAB1(H)
      • B(b);N_PINP(D)::P(D)
      • S(g);N_GUARD::QAB1(H),XS(g)
      • S(g);N_GUARD::QAB1(H)
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Developed and maintained by Brian Stephenson.
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