MESON Chess Problem Database

Problem Display
PID: 101410 (5bQ1/q2r4/r2R3p/8/2pB1P2/2pk1P2/2p1b2K/2n5 w - - 0 1)

Pape, Edouard

Good Companions, 1918

5bQ1/q2r4/r2R3p/8/2pB1P2/2pk1P2/2p1b2K/2n5

#2

6 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Bb6#
  • Tries
    • 1.Bb6+?
      • 1...Bxd6
        • 2.Qd5#
      • 1...Rxd6!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qe3#
      • 1...Kd2
        • 2.Be3#
      • 1...Qxd4
        • 2.Qxd4#
      • 1...Re7
        • 2.Bb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(j);N_GUARD,S_CUTB(k)::R(E)+B(C)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • B(k);P_PINP(D),XR(E)::QAR2(F)
      • Refutation
        • R(j);XR(E)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • K(e);P-FLIGHT::R(E)+B(C),DCHECK
      • Q(i);OGATE,P_SPINQ(i),XB(C)::QAR1(F),XQ(i)
      • R(j);N_GUARD,S_CUTB(k)::R(E)+B(C)
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