MESON Chess Problem Database

Problem Display
PID: 132472 (2B1b3/r2r2p1/RnQ1P1p1/2B1k1P1/1Np4N/2Pp1pP1/8/5K2 w - - 0 1)

Luke, R

The Field, 1957

(First published on Thu May 9 1957)

2B1b3/r2r2p1/RnQ1P1p1/2B1k1P1/1Np4N/2Pp1pP1/8/5K2

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Bxd4#
      • 2.cxd4#
    • 1...Rd6
      • 2.Bxd6#
    • 1...Rb7
      • 2.Bd4#
      • 2.Bd6#
    • 1...Rc7
      • 2.Bd4#
      • 2.Bd6#
    • 1...Re7
      • 2.Bd4#
      • 2.Bd6#
    • 1...Rf7
      • 2.Bd4#
      • 2.Bd6#
  • Tries
    • 1.Bxd7?
      • threat
        • 2.Bd4#
        • 2.Bd6#
      • 1...Bxd7
        • 2.Bd4#
      • 1...Sxd7
        • 2.Bd4#
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sc8
        • 2.Bd4#
        • 2.Qd5#
      • 1...Rxd7!
    • 1.Qd6+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Rxd6!
    • 1.exd7?
      • threat
        • 2.Bd4#
      • 1...Sd5
        • 2.Qxd5#
        • 2.Qe6#
      • 1...Rxd7!
  • Keys
    • 1.Qxf3!
      • threat
        • 2.Qe3#
      • 1...Kxe6
        • 2.Qd5#
      • 1...Rd4
        • 2.cxd4#
      • 1...Rf7
        • 2.Sxg6#
      • 1...Sd5
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD::B(F),XR(h)
  • Tries
    • Try
      • B(K);XR(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(j);XB(K)::B(F)
        • S(e);N_GUARD::QAR1(I),XS(e)
      • Refutation
        • R(g);XB(K)
    • Try
      • Q(I);CHECK
      • Vars
        • K(d);OGATE,P-FLIGHT::QAR1(I)
      • Refutation
        • R(h);XQ(I)
    • Try
      • P(J);XR(h)
      • Threat
        • B(F)
      • Refutation
        • R(g);XP(J)
  • Actual
    • Q(I);XP(b)
    • Threat
      • QAR2(I)
    • Vars
      • K(d);P-FLIGHT,P_SPINR(h),P_SPINS(e),XP(J)::QAB1(I)
      • R(h);OGATE::P(B),XR(h)
      • R(h);P_PINQ(I),S_CUTB(j)::S(E),XP(f)
      • S(e);S_CUTR(h)::B(F)
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