MESON Chess Problem Database

Problem Display
PID: 138250 (4r3/8/3p1rP1/N2pP1Q1/p2k4/K1RB4/2P5/8 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

4th Prize, Probleemblad, 2010

4r3/8/3p1rP1/N2pP1Q1/p2k4/K1RB4/2P5/8

#2

8 + 6

102 Probleemblad 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3+?
      • 1...Kxc3
        • 2.Qd2#
      • 1...axb3!
    • 1.Qd2?
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Qe3#
      • 1...dxe5
        • 2.Bf5#
      • 1...Rc8!
    • 1.Qe3+?
      • 1...Kxc3
        • 2.Be4#
        • 2.Bf5#
      • 1...Kxe3!
    • 1.Qf4+?
      • 1...Kxc3
        • 2.Qb4#
      • 1...Rxf4!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Qe3#
      • 1...Kxc3
        • 2.Qe3#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Rxe5
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(C)::QAB1(G)
      • Refutation
        • P(a);XS(E)
    • Try
      • Q(G);
      • Threat
        • S(E)
      • Vars
        • K(b);S_FLIGHT,XP(F)::QAR2(G)
        • P(d);SBLOCK,XP(F)::QAR(G)+B(D)
      • Refutation
        • R(f);
    • Try
      • Q(G);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XR(C)::QAB1(G)
      • Refutation
        • R(e);XQ(G)
  • Actual
    • B(D);
    • Threat
      • QAB1(G)
    • Vars
      • K(b);S_FLIGHT,XR(C)::QAR2(G)
      • K(b);S_FLIGHT,XP(F)::S(E)
      • R(f);SBLOCK,XP(F)::QAR2(G)
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