MESON Chess Problem Database

Problem Display
PID: 148454 (3b3n/rp6/Pp1N3B/1R5P/RN2B1k1/Q5Pr/P1K3P1/6n1 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1955

3b3n/rp6/Pp1N3B/1R5P/RN2B1k1/Q5Pr/P1K3P1/6n1

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Rxg5#
    • 1...Bc7
      • 2.Rg5#
    • 1...Se2
      • 2.Qf3#
    • 1...Sf3
      • 2.Qxf3#
  • Tries
    • 1.Bf3+?
      • 1...Sxf3
        • 2.Qxf3#
      • 1...Kxg3!
    • 1.Qe3?
      • threat
        • 2.Qf4#
      • 1...Bg5
        • 2.Rxg5#
        • 2.Qxg5#
      • 1...Se2
        • 2.Qf3#
      • 1...Sg6!
    • 1.gxh3+?
      • 1...Sxh3
        • 2.Qf3#
      • 1...Kxh3!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Bd7#
      • 1...Rxg3
        • 2.Sd3#
      • 1...Rxh5
        • 2.Sd5#
      • 1...bxa6
        • 2.Sxa6#
      • 1...bxc6
        • 2.Sxc6#
      • 1...Bg5
        • 2.Rxg5#
      • 1...Sf3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(g);N_GUARD::R1(I),XB(g)
    • B(g);N_GUARD::R1(I)
    • S(a);N_GUARD::QAB1(D)
    • S(a);N_GUARD::QAB1(D),XS(a)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • S(a);OGATE,XB(H)::QAB1(D),XS(a)
      • Refutation
        • K(c);P-FLIGHT,XP(E)
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • S(a);N_GUARD::QAB1(D)
      • Refutation
        • S(h);
    • Try
      • P(C);CHECK,XR(b)
      • Vars
        • S(a);SBLOCK,XP(C)::QAB1(D)
      • Refutation
        • K(c);S_FLIGHT,XP(C)
  • Actual
    • B(H);
    • Threat
      • B(H)
    • Vars
      • R(b);SBLOCK,XP(E)::R(F)+S(G)
      • R(b);SBLOCK,XP(J)::R(F)+S(G)
      • P(f);XP(K)::R(F)+S(G),XP(f)
      • P(f);XB(H)::R(F)+S(G),XP(f)
      • B(g);N_GUARD::R1(I),XB(g)
      • S(a);N_GUARD::QAB1(D),XS(a)
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