MESON Chess Problem Database

Problem Display
PID: 156920 (8/8/8/8/2R3PP/2NkB1Qp/2R4K/8 w - - 0 1)

Agapov, Igor Alexeyevich

Chepizhni-80 JT, 2014

8/8/8/8/2R3PP/2NkB1Qp/2R4K/8

#2

8 + 2

5454 Near Snap 2016
15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Qe1?
      • threat
        • 2.Qe2#
      • 1...Kxc2
        • 2.Qb1#
      • 1...Kxc4!
    • 1.Qe5?
      • threat
        • 2.Qe4#
      • 1...Kxc4
        • 2.Qb5#
      • 1...Kxc2!
    • 1.Qc7?
      • 1...Kxe3
        • 2.Qg3#
      • 1...Kxc2!
    • 1.Qg1?
      • 1...Kxc2
        • 2.Qb1#
      • 1...Kxc4!
  • Keys
    • 1.Qb8!
      • 1...Kxc2
        • 2.Qb1#
      • 1...Kxe3
        • 2.Qg3#
      • 1...Kxc4
        • 2.Qb5#

Anticipated by 5144(1900), 95071(1981)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(A)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT,XR(F)
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(F)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(E);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XB(D)::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(E);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(A)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT,XR(F)
  • Actual
    • Q(E);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XR(A)::QAB1(E)
      • K(a);OGATEB,P-FLIGHT,XB(D)::QAR2(E)
      • K(a);OGATEB,S_FLIGHT,XR(F)::QAB1(E)
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