MESON Chess Problem Database

Problem Display
PID: 16283 (2N4N/2b5/2R5/4k2q/8/Kn4Pp/2B1r2B/3Q1br1 w - - 0 1)

Saunders, Denis M

The Problemist, 2000

2N4N/2b5/2R5/4k2q/8/Kn4Pp/2B1r2B/3Q1br1

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Sg6#
    • 1...Qg4
      • 2.Sf7#
    • 1...Qg6
      • 2.Sxg6#
    • 1...Qf7
      • 2.Sxf7#
    • 1...Qh4
      • 2.Sg6#
      • 2.Sf7#
    • 1...Qg5
      • 2.Sf7#
    • 1...Qh6
      • 2.Sf7#
    • 1...Rxg3
      • 2.Bxg3#
    • 1...Bg2
      • 2.g4#
    • 1...Ba5
      • 2.Qd6#
    • 1...Bb6
      • 2.Qd6#
    • 1...Bd6+
      • 2.Qxd6#
    • 1...Bd8
      • 2.Qd6#
  • Tries
    • 1.g4+?
      • 1...Rg3
        • 2.Bxg3#
      • 1...Rxh2!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Qd5#
      • 1...Bxd6+
        • 2.Qxd6#
      • 1...Rxg3
        • 2.Bxg3#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Qf3
        • 2.Sg6#
      • 1...Qf7
        • 2.Sxf7#
      • 1...Rd2
        • 2.Qxh5#
      • 1...Bg2
        • 2.g4#
      • 1...Sd2
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(g);N_GUARD::S(H)
    • Q(g);N_GUARD::S(H),XQ(g)
    • R(b);OGATE,P_SPINR(b),XP(E)::B(C),XR(b)
    • B(a);S_CUTR(b),S_CUTR(c)::B(C)+P(E)
    • B(h);N_GUARD::QAB1(A)
    • B(h);CHECK,N_GUARD::QAB1(A),XB(h)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::B(C),XR(b)
      • Refutation
        • R(c);XB(C)
  • Actual
    • R(F);
    • Threat
      • QAR1(A)
    • Vars
      • B(h);CHECK,OGATE,XR(F)::QAB1(A),XB(h)
      • R(b);OGATE,P_SPINR(b),XP(E)::B(C),XR(b)
      • S(d);N_GUARD::QAB1(A),XS(d)
      • Q(g);N_GUARD::S(H)
      • Q(g);N_GUARD::S(H),XQ(g)
      • R(c);OGATE::QAR(A),XQ(g)
      • B(a);S_CUTR(b),S_CUTR(c)::B(C)+P(E)
      • S(d);N_GUARD::QAB(A)
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