MESON Chess Problem Database

Problem Display
PID: 132733 (1r1B4/2pB4/ppPkPp2/Nb1p4/NR4P1/2Q2nq1/1K3p2/3R4 w - - 0 1)

Baxter, FL

The Field, 1958

(First published on Thu Apr 17 1958)

1r1B4/2pB4/ppPkPp2/Nb1p4/NR4P1/2Q2nq1/1K3p2/3R4

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb7
      • 2.Sxb7#
    • 1...Ra8
      • 2.Sb7#
    • 1...Rc8
      • 2.Sb7#
    • 1...Bc4
      • 2.Sxc4#
    • 1...Bxc6
      • 2.Sc4#
    • 1...Se1
      • 2.Qxg3#
    • 1...Sg1
      • 2.Qxg3#
    • 1...Sd2
      • 2.Qxg3#
    • 1...Sh2
      • 2.Qxg3#
    • 1...Sd4
      • 2.Qxg3#
    • 1...Sh4
      • 2.Qxg3#
    • 1...Sg5
      • 2.Qxg3#
  • Tries
    • 1.Qc5+?
      • 1...Ke5
        • 2.Bxc7#
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...bxc5!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Re4#
      • 1...Qe5+
        • 2.Rbd4#
      • 1...Ke5
        • 2.Bxc7#
      • 1...d4
        • 2.Rxb5#
      • 1...Bc4
        • 2.Sxc4#
      • 1...Se1
        • 2.Qxg3#
      • 1...Sg1
        • 2.Qxg3#
      • 1...Sd2
        • 2.Qxg3#
      • 1...Sh2
        • 2.Qxg3#
      • 1...Sd4
        • 2.Qxg3#
      • 1...Sh4
        • 2.Qxg3#
      • 1...Se5
        • 2.Rb3#
      • 1...Sg5
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(k);N_GUARD::S(G),XR(k)
    • R(k);N_GUARD::S(G)
    • B(d);N_GUARD::S(G),XB(d)
    • B(d);N_GUARD,XP(H)::S(G)
    • S(b);OGATE::QAB(C),XQ(c)
    • S(b);N_SPINP(e),OGATE::QAB(C),XQ(c)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • P(g);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)+R(E)
    • Vars
      • Q(c);CHECK,SBLOCK::QAB(C)+R(E)
      • K(h);N_SPINP(e),S_FLIGHT::B(K),XP(j)
      • P(e);::QAB(C)+R(E),XB(d)
      • B(d);N_GUARD::S(G),XB(d)
      • S(b);OGATE::QAB(C),XQ(c)
      • S(b);N_SPINP(e),OGATE::QAB(C),XQ(c)
      • S(b);SBLOCK::QAB(C)+R(E)
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