MESON Chess Problem Database

Problem Display
PID: 60955 (2B5/K5R1/3p1B2/3b2N1/R1n2k2/1Q2N3/3Pn1Pq/6b1 w - - 0 1)

McIntyre, Donald Glenoe

South African Chess Magazine, 1945

2B5/K5R1/3p1B2/3b2N1/R1n2k2/1Q2N3/3Pn1Pq/6b1

#2

10 + 7

5639 Some Problems For My Friends 1957

SOLUTION

  • SOUND
  • Sets
    • 1...Kg3
      • 2.Sh3#
    • 1...Bxe3+
      • 2.Qxe3#
    • 1...Be4
      • 2.Se6#
    • 1...Sd4
      • 2.Sxd5#
  • Tries
    • 1.Sh3+?
      • 1...Ke4
        • 2.Bf5#
        • 2.Qc2#
        • 2.Qb1#
      • 1...Qxh3!
    • 1.Se6+?
      • 1...Ke4
        • 2.Qc2#
        • 2.Qb1#
      • 1...Bxe6!
    • 1.Rxc4+?
      • 1...Kg3
        • 2.Sh3#
      • 1...Be4
        • 2.Se6#
      • 1...Sd4
        • 2.Sxd5#
      • 1...Bxc4!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qxd6#
      • 1...Bxe3+
        • 2.Qxe3#
      • 1...Kg3
        • 2.Sh3#
      • 1...Be4
        • 2.Se6#
      • 1...Sd4
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINS(d),S_FLIGHT::R(I)+S(F)
    • B(a);CHECK,OGATE,XS(D)::QAB1(C),XB(a)
    • B(f);N_GUARD,N_SPINS(d),SBLOCK::S(F)
    • S(b);N_PINS(D),N_SPINS(d)::S(D),XB(f)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • Q(c);XS(F)
    • Try
      • S(F);CHECK
      • Refutation
        • B(f);XS(F)
    • Try
      • R(E);CHECK,XS(d)
      • Vars
        • K(e);S_FLIGHT::R(I)+S(F)
        • B(f);P_SPINB(f)::S(F)
        • S(b);N_PINS(D),P_SPINS(b)::S(D),XB(f)
      • Refutation
        • B(f);XR(E)
  • Actual
    • Q(C);
    • Threat
      • QAB(C),XP(g)
    • Vars
      • B(a);CHECK,OGATE,XS(D)::QAB1(C),XB(a)
      • K(e);N_SPINS(d),S_FLIGHT::R(I)+S(F)
      • B(f);N_GUARD,N_SPINS(d),SBLOCK::S(F)
      • S(b);N_PINS(D),N_SPINS(d)::S(D),XB(f)
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