MESON Chess Problem Database

Problem Display
PID: 251000 (q1B1b3/p1Q2ppP/5k2/3rn1p1/4RNR1/3pN2P/5K2/8 w - - 0 1)

Cornejo, Jose Jesus

Jerusalem Post, 1951

(First published on Fri Nov 23 1951)

q1B1b3/p1Q2ppP/5k2/3rn1p1/4RNR1/3pN2P/5K2/8

#2

9 + 10

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qb8
      • 2.Sexd5#
    • 1...Rd4
      • 2.Qxe5#
    • 1...Ra5
      • 2.Qd6#
      • 2.Qd8#
    • 1...Rb5
      • 2.Qd6#
      • 2.Qd8#
    • 1...Rc5
      • 2.Qd6#
      • 2.Qd8#
    • 1...Rd6
      • 2.Qxd6#
    • 1...Rd7
      • 2.Qxe5#
    • 1...Rd8
      • 2.Qxe5#
      • 2.Qxd8#
    • 1...Bd7
      • 2.Qd8#
    • 1...Sf3
      • 2.Qe7#
    • 1...Sc4
      • 2.Qe7#
    • 1...Sxg4+
      • 2.Sxg4#
    • 1...Sc6
      • 2.Sexd5#
    • 1...Sg6
      • 2.Sh5#
    • 1...Sd7
      • 2.Qd8#
    • 1...gxf4
      • 2.Rexf4#
    • 1...g6
      • 2.h8Q#
      • 2.h8B#
  • Keys
    • 1.h4!
      • threat
        • 2.hxg5#
      • 1...Sxg4+
        • 2.Sxg4#
      • 1...gxf4
        • 2.Rexf4#
      • 1...gxh4
        • 2.Sh5#
      • 1...Rd7
        • 2.Qxe5#
      • 1...Bd7
        • 2.Qd8#
      • 1...g6
        • 2.h8Q#
        • 2.h8B#
      • 1...Sf3
        • 2.Qe7#
      • 1...Sc4
        • 2.Qe7#
      • 1...Sc6
        • 2.Sexd5#
      • 1...Sg6
        • 2.Sh5#
      • 1...Sd7
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(i);N_GUARD::S(B),XR(b)
    • R(b);N_GUARD::QAB1(G),XS(c)
    • R(b);N_GUARD::QAR2(G),XR(b)
    • B(j);S_CUTR(b)::QAB(G)
    • S(c);::QAB1(G)
    • S(c);CHECK,XR(F)::S(B),XS(c)
    • S(c);S_CUTQ(i)::S(B),XR(b)
    • S(c);SBLOCK::S(E)
    • S(c);S_CUTR(b)::QAB(G)
    • P(d);OGATE,XS(E)::R(D),XP(d)
    • P(h);::P=Q
  • Actual
    • P(C);
    • Threat
      • P(C),XP(d)
    • Vars
      • S(c);CHECK,XR(F)::S(B),XS(c)
      • P(d);OGATE,XS(E)::R(D),XP(d)
      • P(d);XP(C)::S(E)
      • R(b);N_GUARD::QAB1(G),XS(c)
      • B(j);S_CUTR(b)::QAB(G)
      • P(h);::P=Q
      • S(c);::QAB1(G)
      • S(c);S_CUTQ(i)::S(B),XR(b)
      • S(c);SBLOCK::S(E)
      • S(c);S_CUTR(b)::QAB(G)
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