MESON Chess Problem Database

Problem Display
PID: 2666 (1N6/1p2B3/1p1Q4/5p2/2k1bp2/1p1p1Pp1/1P1P2Pp/2N4K w - - 0 1)

Schlesinger, John

Source?, 0000

1N6/1p2B3/1p1Q4/5p2/2k1bp2/1p1p1Pp1/1P1P2Pp/2N4K

#2

9 + 10

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Qb4#
    • 1...Bxf3
      • 2.Qxd3#
    • 1...Bd5
      • 2.Qb4#
    • 1...Bc6
      • 2.Qxd3#
    • 1...b5
      • 2.Qc5#
  • Tries
    • 1.Sd7?
      • 1...Bxf3
        • 2.Qxd3#
      • 1...Bd5
        • 2.Qb4#
      • 1...Bc6
        • 2.Qxd3#
      • 1...b5
        • 2.Se5#
        • 2.Sb6#
        • 2.Qc5#
      • 1...Kb5!
    • 1.Qd4+?
      • 1...Kb5
        • 2.Qb4#
      • 1...Kxd4!
    • 1.Qd7?
      • 1...Bxf3
        • 2.Qxd3#
      • 1...Bd5
        • 2.Qa4#
      • 1...Bc6
        • 2.Qxd3#
      • 1...b5!
    • 1.fxe4?
      • threat
        • 2.Qb4#
        • 2.Qxd3#
        • 2.Qd5#
      • 1...Kb5
        • 2.Qb4#
      • 1...fxe4!
  • Keys
    • 1.Bf8!
      • 1...Kb5
        • 2.Qb4#
      • 1...Bxf3
        • 2.Qxd3#
      • 1...Bd5
        • 2.Qb4#
      • 1...Bc6
        • 2.Qxd3#
      • 1...b5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::QAR1(G)
    • B(f);N_GUARD,P_PINP(E),XP(F)::QAB1(G),XP(c)
    • B(f);SBLOCK::QAR1(G)
    • B(f);N_GUARD::QAB1(G),XP(c)
    • P(i);N_GUARD::QAR1(G)
  • Tries
    • Try
      • S(I);
      • Vars
        • B(f);N_GUARD,P_PINP(E),XP(F)::QAB1(G),XP(c)
        • B(f);SBLOCK::QAR1(G)
        • B(f);N_GUARD::QAB1(G),XP(c)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(e);OGATE,S_FLIGHT::QAR1(G)
      • Refutation
        • K(e);P-FLIGHT,XQ(G)
    • Try
      • Q(G);
      • Vars
        • B(f);N_GUARD,P_PINP(E),XP(F)::QAB1(G),XP(c)
        • B(f);SBLOCK::QAR2(G)
        • B(f);N_GUARD::QAB1(G),XP(c)
      • Refutation
        • P(i);
    • Try
      • P(F);XB(f)
      • Threat
        • DUALS(3)
      • Vars
        • K(e);S_FLIGHT::QAR1(G)
      • Refutation
        • P(h);XP(F)
  • Actual
    • B(H);
    • Vars
      • K(e);S_FLIGHT::QAR1(G)
      • B(f);N_GUARD,P_PINP(E),XP(F)::QAB1(G),XP(c)
      • B(f);SBLOCK::QAR1(G)
      • B(f);N_GUARD::QAB1(G),XP(c)
      • P(i);N_GUARD::QAR1(G)
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