MESON Chess Problem Database

Problem Display
PID: 156984 (8/2K2B1p/4P2p/QP4pP/P4N1k/7n/5R1R/7N w - - 0 1)

Abdullayev, Elmar

Haji Mammadov-60 JT, 2014

8/2K2B1p/4P2p/QP4pP/P4N1k/7n/5R1R/7N

#2

11 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sxh3?
      • 1...Kg4
        • 2.Qb4#
      • 1...g4!
    • 1.Rfg2?
      • threat
        • 2.Rxh3#
        • 2.Qe1#
      • 1...gxf4
        • 2.Qe1#
      • 1...g4!
    • 1.Qd2?
      • 1...gxf4
        • 2.Qxf4#
      • 1...g4
        • 2.Sg2#
        • 2.Qd8#
      • 1...Kg4!
    • 1.Qc3?
      • threat
        • 2.Qg3#
        • 2.Qxh3#
      • 1...Kg4
        • 2.Qxh3#
      • 1...g4
        • 2.Qf6#
      • 1...gxf4!
    • 1.b6?
      • 1...gxf4
        • 2.Rxf4#
      • 1...g4
        • 2.Sg2#
      • 1...Kg4!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Sg2#
      • 1...Kg4
        • 2.Sxh3#
      • 1...gxf4
        • 2.Qxf4#
      • 1...g4
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);XS(a)
      • Vars
        • K(b);P-FLIGHT::QAR(F)
      • Refutation
        • P(c);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XS(E)::QAB(F)
      • Refutation
        • P(c);
    • Try
      • Q(F);
      • Vars
        • P(c);OGATE,XS(E)::QAR2(F),XP(c)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);N_SPINS(a),P-FLIGHT::QAB1(F),XS(a)
        • P(c);OGATEB,SBLOCK::QAB(F)
      • Refutation
        • P(c);XS(E)
    • Try
      • P(G);
      • Vars
        • P(c);OGATE,XS(E)::R(B),XP(c)
        • P(c);SBLOCK::S(E)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAR(F)+S(E),DCHECK
    • Vars
      • K(b);N_SPINS(a),P-FLIGHT::QAR(F)+S(E),XS(a)
      • P(c);OGATE,P_SPINP(c),XS(E)::QAR2(F),XP(c)
      • P(c);OGATEB,SBLOCK::QAB(F)
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