MESON Chess Problem Database

Problem Display
PID: 78117 (N1Q1b2q/8/1P1p4/1kb5/R5R1/2p2nn1/2P1r3/K2N1B2 w - - 0 1)

Andrade, Barry Jack da Costa

The Field, 1952

(First published on Sat Feb 2 1952)

N1Q1b2q/8/1P1p4/1kb5/R5R1/2p2nn1/2P1r3/K2N1B2

#2

9 + 9

1189 The Tablet 1956

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qxe8#
    • 1...Qf6
      • 2.Qxe8#
    • 1...Qh1
      • 2.Sxc3#
      • 2.Qxe8#
    • 1...Qh2
      • 2.Sxc3#
      • 2.Qxe8#
    • 1...Qh3
      • 2.Sxc3#
      • 2.Qxe8#
    • 1...Qh4
      • 2.Sxc3#
      • 2.Qxe8#
    • 1...Qh5
      • 2.Sxc3#
    • 1...Qh6
      • 2.Sxc3#
      • 2.Qxe8#
    • 1...Qh7
      • 2.Sxc3#
    • 1...Qf8
      • 2.Sxc3#
    • 1...Qg8
      • 2.Sxc3#
    • 1...Bg1
      • 2.Rgb4#
      • 2.Qc4#
    • 1...Bf2
      • 2.Rgb4#
      • 2.Qc4#
    • 1...Ba3
      • 2.Qc4#
    • 1...Be3
      • 2.Rgb4#
      • 2.Qc4#
    • 1...Bb4
      • 2.Rgxb4#
    • 1...Bd4
      • 2.Qc4#
    • 1...Bxb6
      • 2.Rgb4#
      • 2.Qc4#
    • 1...Bh5
      • 2.Qd7#
    • 1...Bc6
      • 2.Qa6#
    • 1...Bg6
      • 2.Qd7#
    • 1...Bd7
      • 2.Qxd7#
    • 1...Bf7
      • 2.Qd7#
    • 1...Sd4
      • 2.Sxc3#
    • 1...Se5
      • 2.Sxc3#
    • 1...Sh1
      • 2.Bxe2#
    • 1...Sf5
      • 2.Bxe2#
    • 1...Sh5
      • 2.Bxe2#
  • Tries
    • 1.Sc7+?
      • 1...Kxb6
        • 2.Ra6#
      • 1...Kc6!
  • Keys
    • 1.Rgd4!
      • threat
        • 2.Sxc3#
      • 1...Qxd4
        • 2.Qxe8#
      • 1...Bxd4
        • 2.Qc4#
      • 1...Bb4
        • 2.Rdxb4#
      • 1...Se4
        • 2.Bxe2#

There are these versions: 114832

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 16
  • Sets
    • Q(i);N_GUARD::QAB(I),XB(h)
    • Q(i);N_GUARD::S(B),XP(b)
    • B(f);OGATE::QAB1(I)
    • B(f);N_GUARD::R1(F),XB(f)
    • B(h);N_GUARD::QAB(I)
    • B(h);SBLOCK::QAB1(I)
    • B(h);N_GUARD::QAB(I),XB(h)
    • S(c);S_CUTQ(i)::S(B),XP(b)
    • S(d);N_GUARD::B(C),XR(a)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);N_SPINR(a),P-FLIGHT,XP(G)::R1(E)
      • Refutation
        • K(e);N_SPINR(a),S_FLIGHT
  • Actual
    • R(F);
    • Threat
      • S(B),XP(b)
    • Vars
      • Q(i);N_GUARD,XR(F)::QAB(I),XB(h)
      • B(f);OGATE,XR(F)::QAB1(I)
      • B(f);N_GUARD::R1(F),XB(f)
      • S(d);N_GUARD::B(C),XR(a)
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