MESON Chess Problem Database

Problem Display
PID: 60666 (4R1b1/6p1/2p1B3/K3k2N/pQ2N1pr/r6n/3P4/b7 w - - 0 1)

McIntyre, Donald Glenoe

Cape Times, 1939

4R1b1/6p1/2p1B3/K3k2N/pQ2N1pr/r6n/3P4/b7

#2

7 + 10

5639 Some Problems For My Friends 1957

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6?
      • threat
        • 2.Bf7#
        • 2.Bxg8#
        • 2.Qc5#
      • 1...Bxe6
        • 2.Qc5#
      • 1...c5
        • 2.Qxc5#
      • 1...Rc3
        • 2.Bf7#
        • 2.Bxg8#
        • 2.d4#
      • 1...Rd3
        • 2.Bf7#
        • 2.Bxg8#
      • 1...Bc3
        • 2.Bf7#
        • 2.Bxg8#
      • 1...Bd4
        • 2.Bf7#
        • 2.Bxg8#
      • 1...Bf7
        • 2.Sxf7#
        • 2.Bxf7#
        • 2.Qc5#
      • 1...Bh7
        • 2.Sf7#
        • 2.Ba2#
        • 2.Bb3#
        • 2.Bf7#
        • 2.Bg8#
        • 2.Qc5#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qc5#
        • 2.Qf4#
      • 1...Rxh5!
    • 1.Bxg4+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Be6!
    • 1.Bf5+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Be6
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Bd7+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Be6!
    • 1.Bc8+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Be6!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Qc5#
      • 1...Rxh5
        • 2.Sxg4#
      • 1...Sxf2
        • 2.Qf4#
      • 1...c5
        • 2.Qxc5#
      • 1...Rc3
        • 2.d4#
      • 1...Rd3
        • 2.Sxd3#
      • 1...Bc3
        • 2.Sd3#
      • 1...Bd4
        • 2.Qb8#
      • 1...Sf4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(3)
      • Vars
        • B(j);P_SPINB(j),XB(F)::QAR2(B)
        • P(h);::QAR2(B),XP(h)
        • S(c);N_GUARD::QAB1(B),XS(c)
      • Refutation
        • R(f);XS(E)
    • Try
      • B(F);CHECK,XP(e)
      • Vars
        • K(g);P-FLIGHT::QAR1(B)
      • Refutation
        • B(j);P_SPINB(j)
    • Try
      • B(F);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(B)
        • B(j);P_SPINB(j)::QAR2(B)
      • Refutation
        • K(g);P-FLIGHT,XB(F)
    • Try
      • B(F);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(B)
      • Refutation
        • B(j);P_SPINB(j)
    • Try
      • B(F);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(B)
      • Refutation
        • B(j);P_SPINB(j)
  • Actual
    • S(C);
    • Threat
      • QAR2(B)
    • Vars
      • R(f);N_GUARD,XS(E)::S(C),XP(e)
      • S(c);N_GUARD,XS(C)::QAB1(B)
      • P(h);::QAR2(B),XP(h)
      • R(b);S_CUTB(a)::P(A)
      • R(b);N_GUARD::S(C),XR(b)
      • B(a);P_PINQ(B),S_CUTR(b)::S(C)
      • B(a);SBLOCK::QAB(B)
      • S(c);N_GUARD::QAB1(B),XS(c)
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