MESON Chess Problem Database

Problem Display
PID: 179146 (3Q4/8/4p3/2N1P3/2kp4/P1N5/3B4/2KR4 w - - 0 1)

Sayman, Umut

Sachmatija, 2014

3Q4/8/4p3/2N1P3/2kp4/P1N5/3B4/2KR4

#2

8 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qc7#
  • Tries
    • 1.S3a4?
      • 1...d3
        • 2.Qxd3#
      • 1...Kb5!
    • 1.S3e4?
      • 1...d3
        • 2.Qxd3#
      • 1...Kb5!
    • 1.Qa5?
      • threat
        • 2.Qb4#
        • 2.Qb5#
      • 1...d3
        • 2.Qb4#
      • 1...dxc3!
    • 1.Qb6?
      • threat
        • 2.Qb4#
        • 2.Qb5#
      • 1...d3
        • 2.Qb4#
      • 1...dxc3!
    • 1.Qb8?
      • threat
        • 2.Qb4#
        • 2.Qb5#
      • 1...Kxc5
        • 2.Qc7#
        • 2.Qb5#
      • 1...d3
        • 2.Qb4#
      • 1...dxc3!
  • Keys
    • 1.Be3!
      • threat
        • 2.Qxd4#
      • 1...Kxc3
        • 2.Qxd4#
      • 1...Kxc5
        • 2.Qc7#
      • 1...dxc3
        • 2.Qd3#
      • 1...dxe3
        • 2.Qd4#
      • 1...d3
        • 2.Qxd3#
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,XS(F)::QAR2(H)
  • Tries
    • Try
      • S(E);
      • Vars
        • P(b);OGATE::QAB1(H),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • P(b);OGATE::QAB1(H),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(H)
      • Refutation
        • P(b);XS(E)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(H)
      • Refutation
        • P(b);XS(E)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(H)
      • Refutation
        • P(b);XS(E)
  • Actual
    • B(C);
    • Threat
      • QAR1(H),XP(b)
    • Vars
      • K(a);P-FLIGHT,XS(E)::QAB1(H),XP(b)
      • K(a);OGATEB,P-FLIGHT,P_SPINP(b),XS(F)::QAR2(H)
      • P(b);OGATE,XS(E)::QAB1(H)
      • P(b);XB(C)::QAR1(H)
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