MESON Chess Problem Database

Problem Display
PID: 159137 (8/1N6/p7/Pp6/k1P5/8/1PR2P2/1KN3Q1 w - - 0 1)

Abdullayev, Elmar

Polski Zwiazek Szachowy, 2013

8/1N6/p7/Pp6/k1P5/8/1PR2P2/1KN3Q1

#2

9 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • 1...Kb3
        • 2.Sbc5#
      • 1...b4
        • 2.Sdc5#
      • 1...bxc4!
    • 1.Qe1?
      • threat
        • 2.Sc5#
      • 1...b4
        • 2.Qe8#
      • 1...bxc4!
    • 1.Qg3?
      • threat
        • 2.Qa3#
        • 2.Qb3#
      • 1...Kb4
        • 2.Qa3#
        • 2.Qb3#
      • 1...b4
        • 2.Qb3#
      • 1...bxc4!
    • 1.Qg8?
      • 1...bxc4
        • 2.Qxc4#
      • 1...b4
        • 2.Qe8#
      • 1...Kb4!
    • 1.c5?
      • 1...Kb4
        • 2.Qg4#
      • 1...b4!
  • Keys
    • 1.Qg4!
      • 1...Kb4
        • 2.c5#
      • 1...bxc4
        • 2.Qxc4#
      • 1...b4
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::S(I)
        • P(b);SBLOCK::S(B)
      • Refutation
        • P(b);XP(G)
    • Try
      • Q(C);
      • Threat
        • S(I)
      • Vars
        • P(b);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • P(b);XP(G)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAB1(C)
      • Refutation
        • P(b);XP(G)
    • Try
      • Q(C);
      • Vars
        • P(b);OGATE,XP(G)::QAR2(C),XP(b)
        • P(b);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(G);
      • Vars
        • K(a);P-FLIGHT::QAR(C)
      • Refutation
        • P(b);
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR(C)+P(G)
      • P(b);OGATE,P_SPINP(b),XP(G)::QAR2(C),XP(b)
      • P(b);OGATEB,SBLOCK::QAB(C)
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