MESON Chess Problem Database

Problem Display
PID: 80955 (8/6Rp/7P/3N2NK/8/3pp1k1/1q6/2b2Q2 w - - 0 1)

Andrade, Barry Jack da Costa

The Field, 1950

(First published on Sat Mar 25 1950)

8/6Rp/7P/3N2NK/8/3pp1k1/1q6/2b2Q2

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kh2
      • 2.Sf3#
    • 1...Qa1
      • 2.Qg1#
    • 1...Qa3
      • 2.Sf3#
      • 2.Qg1#
    • 1...Qc3
      • 2.Qg1#
    • 1...Qd4
      • 2.Qg1#
    • 1...Qe5
      • 2.Qg1#
    • 1...Qf6
      • 2.Qg1#
    • 1...Qxg7
      • 2.Qg1#
    • 1...Qb1
      • 2.Sf3#
      • 2.Qg1#
    • 1...Qa2
      • 2.Sf3#
    • 1...Qc2
      • 2.Sf3#
    • 1...Qd2
      • 2.Sf3#
    • 1...Qe2+
      • 2.Sf3#
    • 1...Qf2
      • 2.Qh3#
    • 1...Qg2
      • 2.Qf4#
    • 1...Qh2+
      • 2.Sh3#
    • 1...Qb3
      • 2.Sf3#
      • 2.Qg1#
    • 1...Qb4
      • 2.Qg1#
    • 1...Qb5
      • 2.Sf3#
      • 2.Qg1#
    • 1...Qb6
      • 2.Qg1#
    • 1...Qb7
      • 2.Qg1#
    • 1...Qb8
      • 2.Sf3#
      • 2.Qg1#
    • 1...Bd2
      • 2.Qg1#
    • 1...d2
      • 2.Qg1#
    • 1...e2
      • 2.Qg1#
  • Keys
    • 1.Rg8!
      • 1...Qe2+
        • 2.Sf3#
      • 1...Qh2+
        • 2.Sh3#
      • 1...Kh2
        • 2.Sf3#
      • 1...Qa1
        • 2.Qg1#
      • 1...Qa3
        • 2.Sf3#
        • 2.Qg1#
      • 1...Qc3
        • 2.Qg1#
      • 1...Qd4
        • 2.Qg1#
      • 1...Qe5
        • 2.Qg1#
      • 1...Qf6
        • 2.Qg1#
      • 1...Qg7
        • 2.Qg1#
      • 1...Qh8
        • 2.Qg1#
      • 1...Qb1
        • 2.Sf3#
        • 2.Qg1#
      • 1...Qa2
        • 2.Sf3#
      • 1...Qc2
        • 2.Sf3#
      • 1...Qd2
        • 2.Sf3#
      • 1...Qf2
        • 2.Qh3#
      • 1...Qg2
        • 2.Qf4#
      • 1...Qb3
        • 2.Sf3#
        • 2.Qg1#
      • 1...Qb4
        • 2.Qg1#
      • 1...Qb5
        • 2.Sf3#
        • 2.Qg1#
      • 1...Qb6
        • 2.Qg1#
      • 1...Qb7
        • 2.Qg1#
      • 1...Qb8
        • 2.Qg1#
      • 1...Bd2
        • 2.Qg1#
      • 1...d2
        • 2.Qg1#
      • 1...e2
        • 2.Qg1#

This is after

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::S(C)
    • Q(b);N_GUARD::QAR2(A)
    • Q(b);N_GUARD,P_PINS(C)::QAR2(A)
    • Q(b);N_GUARD,XR(F)::QAR2(A)
    • Q(b);N_GUARD::R(F)+S(C)
    • Q(b);CHECK,N_GUARD::R(F)+S(C)
    • Q(b);SBLOCK::QAR1(A)
    • Q(b);SBLOCK::QAB1(A)
    • Q(b);CHECK,N_GUARD,SBLOCK::R(F)+S(C)
    • B(a);S_CUTQ(b)::QAR2(A)
    • P(c);S_CUTQ(b)::QAR2(A)
    • P(d);S_CUTQ(b)::QAR2(A)
  • Actual
    • R(F);
    • Vars
      • Q(b);CHECK,N_GUARD::R(F)+S(C)
      • Q(b);CHECK,N_GUARD,SBLOCK::R(F)+S(C)
      • K(e);S_FLIGHT::S(C)
      • Q(b);N_GUARD::QAR2(A)
      • Q(b);N_GUARD,P_PINS(C)::QAR2(A)
      • Q(b);N_GUARD::R(F)+S(C)
      • Q(b);SBLOCK::QAR1(A)
      • Q(b);SBLOCK::QAB1(A)
      • B(a);S_CUTQ(b)::QAR2(A)
      • P(c);S_CUTQ(b)::QAR2(A)
      • P(d);S_CUTQ(b)::QAR2(A)
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