MESON Chess Problem Database

Problem Display
PID: 150705 (8/5p1R/1B6/8/KNkP1p2/2P3nR/2Q5/2n5 w - - 0 1)

Akimov, Nikolai Nikolaevich

Sachsische Zeitung, 2013

8/5p1R/1B6/8/KNkP1p2/2P3nR/2Q5/2n5

#2

8 + 5

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qb3#
      • 2.Qd3#
    • 1...Sce2
      • 2.Qb3#
      • 2.Qd3#
    • 1...Sb3
      • 2.Qxb3#
      • 2.Qd3#
    • 1...Sd3
      • 2.Qb3#
      • 2.Qxd3#
    • 1...f5
      • 2.Rc7#
    • 1...f6
      • 2.Rc7#
  • Tries
    • 1.R3h6?
      • threat
        • 2.Rc6#
      • 1...Sb3
        • 2.Qxb3#
        • 2.Qd3#
      • 1...Sd3
        • 2.Qb3#
        • 2.Qxd3#
      • 1...f6
        • 2.Rc7#
      • 1...Se4!
    • 1.Rxf7?
      • threat
        • 2.Rc7#
      • 1...Sb3
        • 2.Qxb3#
        • 2.Qd3#
      • 1...Sd3
        • 2.Qb3#
        • 2.Qxd3#
      • 1...Se4!
    • 1.Rh8?
      • threat
        • 2.Rc8#
      • 1...Sb3
        • 2.Qxb3#
        • 2.Qd3#
      • 1...Sd3
        • 2.Qb3#
        • 2.Qxd3#
      • 1...Se4!
    • 1.Qe4?
      • threat
        • 2.Qc6#
      • 1...Kxc3
        • 2.Qc2#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sxe4!
    • 1.Qf5?
      • threat
        • 2.Qc8#
        • 2.Qc5#
      • 1...Kxc3
        • 2.Qc2#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Se4
        • 2.Qb5#
        • 2.Qd5#
        • 2.Qxf7#
      • 1...Sxf5!
    • 1.Qa2+?
      • 1...Kxc3
        • 2.Qc2#
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sxa2!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qc6#
      • 1...Kxc3
        • 2.Qc2#
      • 1...fxg6
        • 2.Rc7#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Se4
        • 2.Qxf7#
      • 1...f6
        • 2.Rc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(e);OGATE::R(H)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • P(e);OGATE::R(H)
      • Refutation
        • S(b);
    • Try
      • R(H);XP(e)
      • Threat
        • R(H)
      • Refutation
        • S(b);
    • Try
      • R(H);
      • Threat
        • R(H)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(c);OGATEB,P-FLIGHT,P_SPINS(b),XP(B)::QAR1(A)
        • S(a);N_GUARD::QAB1(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
      • Refutation
        • S(b);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);OGATEB,P-FLIGHT,P_SPINS(b),XP(B)::QAR1(A)
        • S(a);N_GUARD::QAB1(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
      • Refutation
        • S(b);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATEB,P-FLIGHT,P_SPINS(b),XP(B)::QAR1(A)
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(c);OGATEB,P-FLIGHT,P_SPINS(b),XP(B)::QAR1(A)
      • P(e);OGATE,XQ(A)::R(H)
      • S(a);N_GUARD::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(b);::QAB(A),XP(e)
      • P(e);OGATE::R(H)
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