MESON Chess Problem Database

Problem Display
PID: 42896 (k7/2KpP2P/3P4/BNP5/B2P1R2/5rp1/4r1P1/R6q w - - 0 1)

Lipton, Michael

Rice, John Michael

2nd HM., Czech Chess Club, 1959

k7/2KpP2P/3P4/BNP5/B2P1R2/5rp1/4r1P1/R6q

#2

12 + 6

3147 Chess Problems: Introduction to an Art 1963

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg2
      • 2.h8Q#
      • 2.h8R#
    • 1...Qxa1
      • 2.h8Q#
      • 2.h8R#
    • 1...Qb1
      • 2.h8Q#
      • 2.h8R#
    • 1...Qc1
      • 2.h8Q#
      • 2.h8R#
    • 1...Qd1
      • 2.h8Q#
      • 2.h8R#
    • 1...Qe1
      • 2.h8Q#
      • 2.h8R#
    • 1...Qf1
      • 2.h8Q#
      • 2.h8R#
    • 1...Qg1
      • 2.h8Q#
      • 2.h8R#
    • 1...Ra2
      • 2.e8Q#
      • 2.e8R#
    • 1...Rb2
      • 2.e8Q#
      • 2.e8R#
    • 1...Rc2
      • 2.e8Q#
      • 2.e8R#
    • 1...Rd2
      • 2.e8Q#
      • 2.e8R#
    • 1...Ref2
      • 2.e8Q#
      • 2.e8R#
    • 1...Rxg2
      • 2.e8Q#
      • 2.e8R#
    • 1...Ra3
      • 2.Rf8#
    • 1...Rb3
      • 2.Rf8#
    • 1...Rc3
      • 2.Rf8#
    • 1...Rd3
      • 2.Rf8#
    • 1...Re3
      • 2.Rf8#
  • Keys
    • 1.Bb3!
      • threat
        • 2.Bd5#
      • 1...Rxb3
        • 2.Rf8#
      • 1...Qh5
        • 2.Bd2#
      • 1...Re5
        • 2.Be1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(a);N_GUARD,XP(B)::P=Q
    • Q(a);N_GUARD,XR(A)::P=Q
    • Q(a);N_GUARD::P=Q
    • Q(a);N_GUARD,P_PINP(H)::P=Q
    • R(b);N_GUARD::P=Q
    • R(b);N_GUARD,P_PINP(H)::P=Q
    • R(b);N_GUARD,XP(B)::P=Q
    • R(c);N_GUARD::R(E)
    • R(c);N_GUARD,P_PINP(H)::R(E)
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • R(c);N_GUARD,XB(C)::R(E)
      • Q(a);N_GUARD::R(A)+B(F)
      • R(b);N_GUARD::R(A)+B(F)
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