MESON Chess Problem Database

Problem Display
PID: 15534 (b2KR3/p2P1P1P/Q2pN1N1/p2kP3/r3p3/bPnPR1B1/4p3/8 w - - 0 1)

Loustau, Jean-Marc

2nd Prize, Mat, 1985

b2KR3/p2P1P1P/Q2pN1N1/p2kP3/r3p3/bPnPR1B1/4p3/8

#2

13 + 10

721 Variantim 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Qxd6#
    • 1...Rc4
      • 2.Qxc4#
      • 2.bxc4#
      • 2.dxc4#
    • 1...Bc1
      • 2.Qxd6#
    • 1...Bb2
      • 2.Qxd6#
    • 1...Bb4
      • 2.Qc4#
    • 1...Bb7
      • 2.Qxb7#
  • Tries
    • 1.Sc7+?
      • 1...Kc5
        • 2.Qxd6#
      • 1...Kd4!
    • 1.h8Q?
      • threat
        • 2.Sgf4#
      • 1...dxe5
        • 2.Qxe5#
      • 1...exd3!
  • Keys
    • 1.b4!
      • threat
        • 2.Qc4#
        • 2.Qxd6#
      • 1...Rxb4
        • 2.Qxd6#
      • 1...Bxb4
        • 2.Qc4#
      • 1...exd3
        • 2.Sgf4#
      • 1...dxe5
        • 2.Se7#
      • 1...Bc6
        • 2.Qc4#
      • 1...Sb5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(d);S_CUTB(b)::QAR1(F),XP(h)
    • B(b);N_GUARD::QAR1(F),XP(h)
    • B(b);S_CUTR(d)::QAB1(F)
    • B(j);N_GUARD::QAB(F),XB(j)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(g);P-FLIGHT::QAB1(F),XP(h)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • P(K);
      • Threat
        • S(H)
      • Vars
        • P(h);OGATE,XP(E)::QAR1(K),XP(h)
      • Refutation
        • P(e);XP(B)
  • Actual
    • P(A);
    • Threat
      • DUALS(2)
    • Vars
      • R(d);XP(A)::QAR1(F),XP(h)
      • B(b);XP(A)::QAB1(F)
      • P(e);XP(B)::S(H)
      • P(h);XP(E)::S(H)
      • B(j);::QAB1(F)
      • S(c);N_GUARD::QAR2(F),XS(c)
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