MESON Chess Problem Database

Problem Display
PID: 101302 (2Kbn3/5pp1/ppQ3R1/RbnNk1p1/r5P1/3pP3/2r1N3/7B w - - 0 1)

Wynne, Frank Wilson

Good Companions, 1919

2Kbn3/5pp1/ppQ3R1/RbnNk1p1/r5P1/3pP3/2r1N3/7B

#2

9 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.exd4#
    • 1...Sd6+
      • 2.Qxd6#
    • 1...Sf6
      • 2.Rxg5#
    • 1...Sc7
      • 2.Qd6#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qd5#
      • 1...Sd6+
        • 2.Qxd6#
      • 1...Bxc6
        • 2.Sxd3#
        • 2.Sxc6#
      • 1...Bc4
        • 2.Qe4#
      • 1...Sb3
        • 2.Sxd3#
      • 1...Se4
        • 2.Sxd3#
      • 1...Se6
        • 2.Sxd3#
      • 1...Sb7
        • 2.Sxd3#
      • 1...Sd7
        • 2.Sxd3#
      • 1...Sf6
        • 2.Rxg5#
      • 1...Sc7
        • 2.Qd6#
      • 1...fxg6!
    • 1.Rxg5+?
      • 1...f5
        • 2.Rxf5#
      • 1...Bxg5!
  • Keys
    • 1.Sdf4!
      • threat
        • 2.Qd5#
      • 1...Sd6+
        • 2.Qxd6#
      • 1...Bxc6
        • 2.Sxd3#
      • 1...fxg6
        • 2.Sxg6#
      • 1...Rd4
        • 2.exd4#
      • 1...Bc4
        • 2.Qe4#
      • 1...Sb3
        • 2.Sxd3#
      • 1...Se4
        • 2.Sxd3#
      • 1...Se6
        • 2.Sxd3#
      • 1...Sb7
        • 2.Sxd3#
      • 1...Sd7
        • 2.Sxd3#
      • 1...Sf6
        • 2.Rxg5#
      • 1...Sc7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::P(C),XR(c)
    • S(m);CHECK,N_GUARD::QAB1(G),XS(m)
    • S(m);S_CUTB(l),S_CUTP(j)::R(H),XP(g)
    • S(m);N_GUARD::QAB1(G)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(G)
      • Vars
        • S(m);CHECK,N_GUARD::QAB1(G),XS(m)
        • B(d);P_SPINS(e)::QAR1(G)
        • S(e);N_GUARD,P_PINQ(G),P_SPINB(d)::S(F),XP(b)
        • S(m);S_CUTB(l),S_CUTP(j)::R(H),XP(g)
        • S(m);N_GUARD::QAB1(G)
      • Refutation
        • P(j);XR(H)
    • Try
      • R(H);CHECK,XP(g)
      • Vars
        • P(j);P_SPINP(j)::R1(H),XP(j)
      • Refutation
        • B(l);XR(H)
  • Actual
    • S(F);
    • Threat
      • QAR1(G)
    • Vars
      • S(m);CHECK,N_GUARD::QAB1(G),XS(m)
      • B(d);N_GUARD,P_SPINS(e),XQ(G)::S(F),XP(b)
      • P(j);XR(H)::S(F),XP(j)
      • R(c);OGATE::P(C),XR(c)
      • B(d);P_SPINS(e),S_CUTR(c)::QAR1(G)
      • S(e);N_GUARD,P_PINQ(G),P_SPINB(d)::S(F),XP(b)
      • S(m);S_CUTB(l),S_CUTP(j)::R(H),XP(g)
      • S(m);N_GUARD::QAB1(G)
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