MESON Chess Problem Database

Problem Display
PID: 57278 (5N2/3pQ2p/Rb4P1/p1pP1k1p/2p5/2K2PpP/2pn4/1bB2R2 w - - 0 1)

Banny, Dimitry Nikolaevich

2nd HM., Troll, 1996

5N2/3pQ2p/Rb4P1/p1pP1k1p/2p5/2K2PpP/2pn4/1bB2R2

#2

10 + 12

6135 Kubok Ural Problemist Open Solving Ty. 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ba7
      • 2.Qf6#
    • 1...Bc7
      • 2.Qf6#
    • 1...Sxf1
      • 2.Qg5#
    • 1...Sb3
      • 2.Qg5#
    • 1...Sxf3
      • 2.Rxf3#
    • 1...Se4+
      • 2.fxe4#
  • Tries
    • 1.Re1?
      • threat
        • 2.Qe5#
      • 1...Se4+
        • 2.fxe4#
      • 1...Kf4
        • 2.Qf6#
      • 1...Sxf3
        • 2.Qf7#
      • 1...Bc7
        • 2.Qf6#
      • 1...d6!
  • Keys
    • 1.Sxd7!
      • threat
        • 2.Qf6#
      • 1...Se4+
        • 2.Qxe4#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kxg6
        • 2.Qf6#
      • 1...Sxf3
        • 2.Qe6#
      • 1...Bd8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(j);::QAR1(I)
    • S(c);XR(B)::QAR1(I)
    • S(c);::QAR1(I)
    • S(c);OGATE,P_SPINS(c),XP(D)::R(B),XS(c)
    • S(c);CHECK,OGATE::R(B)+P(D)DCHECK,XS(c)
  • Tries
    • Try
      • R(B);
      • Threat
        • QAR1(I)
      • Vars
        • S(c);CHECK,OGATE::P(D),XS(c)
        • K(h);P-FLIGHT,P_SPINS(c)::QAR2(I)
        • S(c);XP(D)::QAR2(I)
        • B(j);::QAR1(I)
      • Refutation
        • P(k);
  • Actual
    • S(J);XP(k)
    • Threat
      • QAR1(I)
    • Vars
      • S(c);CHECK,N_GUARD::QAB1(I),XS(c)
      • K(h);P-FLIGHT,P_SPINS(c)::QAB1(I)
      • K(h);P_SPINB(j),S_FLIGHT,XP(H)::QAR1(I)
      • S(c);P_SPINS(c),XP(D)::QAB1(I)
      • B(j);::QAR1(I)
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