MESON Chess Problem Database

Problem Display
PID: 60712 (1Q2n3/4p3/5B2/7p/R2N2kr/K1N2p1r/6p1/3B1R2 w - - 0 1)

McIntyre, Donald Glenoe

South African Chess Magazine, 1940

1Q2n3/4p3/5B2/7p/R2N2kr/K1N2p1r/6p1/3B1R2

#2

8 + 8

5639 Some Problems For My Friends 1957

SOLUTION

  • SOUND
  • Tries
    • 1.Rxf3?
      • threat
        • 2.Sc2#
        • 2.Sb3#
        • 2.Sdb5#
        • 2.Sf5#
        • 2.Sc6#
        • 2.Se6#
        • 2.Rg3#
        • 2.Qf4#
      • 1...Sxf6
        • 2.Rg3#
        • 2.Qf4#
      • 1...exf6
        • 2.Se6#
        • 2.Rg3#
        • 2.Qf4#
      • 1...Rg3
        • 2.Rxg3#
        • 2.Qxg3#
      • 1...g1Q
        • 2.Rg3#
        • 2.Qf4#
      • 1...g1B
        • 2.Rg3#
        • 2.Qf4#
      • 1...Sd6
        • 2.Qg8#
      • 1...Sc7
        • 2.Sc2#
        • 2.Sb3#
        • 2.Sdb5#
        • 2.Sf5#
        • 2.Sc6#
        • 2.Se6#
        • 2.Qg8#
      • 1...e5
        • 2.Qc8#
      • 1...e6
        • 2.Sc2#
        • 2.Sb3#
        • 2.Sdb5#
        • 2.Sf5#
        • 2.Sc6#
        • 2.Sxe6#
        • 2.Rg3#
        • 2.Qf4#
      • 1...Rxf3!
  • Keys
    • 1.Sce2!
      • threat
        • 2.Qf4#
      • 1...fxe2+
        • 2.Sb3#
      • 1...f2+
        • 2.Sg3#
      • 1...Rh1
        • 2.Qg3#
      • 1...Rh2
        • 2.Qg3#
      • 1...Rg3
        • 2.Qxg3#
      • 1...Sd6
        • 2.Qg8#
      • 1...Sc7
        • 2.Qg8#
      • 1...e5
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);XP(b)
      • Threat
        • DUALS(8)
      • Vars
        • S(h);OGATE::QAR(H)
        • P(g);N_GUARD::QAB(H)
      • Refutation
        • R(c);P_PINS(D),P_SPINR(c),XR(B)
  • Actual
    • S(D);N_PINP(b)
    • Threat
      • QAR1(H)
    • Vars
      • P(b);CHECK,P_SPINP(b),XS(D)::R(E)+S(F)
      • P(b);CHECK::B(A)+S(D)
      • R(c);N_GUARD::QAR1(H)
      • R(c);N_GUARD::QAR1(H),XR(c)
      • S(h);OGATE::QAR(H)
      • P(g);N_GUARD::QAB(H)
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