MESON Chess Problem Database

Problem Display
PID: 179225 (8/8/8/1n1qB3/brp1p3/pkP2N2/R2P1Q2/R6K w - - 0 1)

Maleika, Gerhard

Phenix, 2016

8/8/8/1n1qB3/brp1p3/pkP2N2/R2P1Q2/R6K

#2

8 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd2
      • 2.Sxd2#
  • Tries
    • 1.d3?
      • threat
        • 2.Sd2#
        • 2.Rb1#
        • 2.Qc2#
      • 1...Qxe5
        • 2.Qc2#
      • 1...Sxc3
        • 2.Sd2#
        • 2.Rxa3#
        • 2.Qc2#
      • 1...cxd3
        • 2.Sd2#
      • 1...exd3
        • 2.Rb1#
      • 1...exf3
        • 2.Rb1#
        • 2.Qc2#
      • 1...Qd4
        • 2.Qc2#
      • 1...Sd4
        • 2.Rxa3#
      • 1...e3
        • 2.Rb1#
        • 2.Qc2#
      • 1...Qxd3!
  • Keys
    • 1.d4!
      • threat
        • 2.Qc2#
      • 1...Kxc3
        • 2.Qe3#
      • 1...Sxd4
        • 2.Rxa3#
      • 1...cxd4 ep
        • 2.Sd2#
      • 1...exd4 ep
        • 2.Rb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(h);XP(D)::S(G),XQ(h)
  • Tries
    • Try
      • P(D);
      • Threat
        • DUALS(3)
      • Vars
        • Q(h);XB(H)::QAB1(E)
        • P(e);XP(D)::S(G)
        • P(f);P_PINS(G),XP(D)::R(A)
        • Q(h);::QAB1(E)
        • S(g);N_GUARD::R1(C),XP(a)
      • Refutation
        • Q(h);XP(D)
  • Actual
    • P(D);
    • Threat
      • QAB1(E)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(F)::QAR2(E)
      • S(g);N_GUARD,XP(D)::R1(C),XP(a)
      • P(e);EP,XP(D)::S(G)
      • P(f);EP,P_PINS(G),XP(D)::R(A)
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