MESON Chess Problem Database

Problem Display
PID: 53382 (3nR3/K2B1q2/p5N1/P2kP3/Q1pB3R/1p3P2/N3r3/n1r1b3 w - - 0 1)

Cook, CB

Chess Life, 1955

3nR3/K2B1q2/p5N1/P2kP3/Q1pB3R/1p3P2/N3r3/n1r1b3

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qg8
      • 2.Se7#
    • 1...Qxf3
      • 2.Se7#
    • 1...Qf5
      • 2.Se7#
    • 1...Qxd7+
      • 2.Qxd7#
    • 1...Qe7
      • 2.Sxe7#
    • 1...Rc3
      • 2.Sb4#
    • 1...Rd2
      • 2.Sb4#
    • 1...Bf2
      • 2.Sb4#
    • 1...Bg3
      • 2.Sb4#
    • 1...Bb4
      • 2.Sxb4#
    • 1...Bxa5
      • 2.Qxa5#
    • 1...Sc6+
      • 2.Qxc6#
    • 1...Se6
      • 2.Qc6#
    • 1...Sb7
      • 2.Bc6#
      • 2.Qc6#
  • Keys
    • 1.Bb6!
      • threat
        • 2.Rd4#
      • 1...Qxd7+
        • 2.Qxd7#
      • 1...Sc6+
        • 2.Qxc6#
      • 1...Bxh4
        • 2.Sb4#
      • 1...Qf4
        • 2.Sxf4#
      • 1...Rd1
        • 2.Qxc4#
      • 1...Rd2
        • 2.Sb4#
      • 1...Re4
        • 2.fxe4#
      • 1...Bf2
        • 2.Sb4#
      • 1...Bc3
        • 2.Qxc4#
      • 1...Sc2
        • 2.Qxc4#
      • 1...Se6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • Q(i);N_GUARD,N_PINB(J)::S(H)
    • Q(i);N_GUARD,N_PINB(J),XP(B)::S(H)
    • Q(i);CHECK,OGATE,XB(J)::QAR2(C),XQ(i)
    • Q(i);N_GUARD::S(H),XQ(i)
    • R(b);S_CUTB(c)::S(A)
    • R(d);S_CUTB(c)::S(A)
    • B(c);N_GUARD,N_PINB(J),P_PINB(D)::S(A)
    • B(c);N_GUARD::S(A)
    • B(c);N_GUARD::S(A),XB(c)
    • B(c);OGATE,XP(F)::QAR(C),XB(c)
    • S(j);CHECK,N_GUARD::QAB1(C),XS(j)
    • S(j);N_GUARD::QAB1(C)
  • Actual
    • B(D);
    • Threat
      • R1(E)
    • Vars
      • Q(i);CHECK,OGATE,XB(J)::QAR2(C),XQ(i)
      • S(j);CHECK,N_GUARD::QAB1(C),XS(j)
      • B(c);N_GUARD,XR(E)::S(A)
      • Q(i);N_GUARD,N_PINB(J)::S(H),XQ(i)
      • R(b);N_GUARD::QAB1(C),XP(f)
      • R(d);S_CUTB(c)::S(A)
      • R(d);::P(B),XR(d)
      • B(c);N_GUARD,N_PINB(J),P_PINB(D)::S(A)
      • B(c);S_CUTR(b)::QAB1(C),XP(f)
      • S(a);S_CUTR(b)::QAB1(C),XP(f)
      • S(j);N_GUARD::QAB1(C)
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