MESON Chess Problem Database

Problem Display
PID: 61177 (2BR4/K4p1q/5B1p/1p2pNpQ/1NPpkp2/Rb2P2P/5b2/8 w - - 0 1)

Korenev, Valery Ivanovich

Comm., Uralski Problemist, 2001

2BR4/K4p1q/5B1p/1p2pNpQ/1NPpkp2/Rb2P2P/5b2/8

#2

11 + 11

4393 Uralski Problemist 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Sd6#
    • 1...Bd1
      • 2.Sd6#
    • 1...Ba2
      • 2.Sd6#
    • 1...Bc2
      • 2.Sd6#
    • 1...Ba4
      • 2.Sd6#
    • 1...Bxc4
      • 2.Sd6#
    • 1...fxe3
      • 2.Qg4#
    • 1...f3
      • 2.Qg4#
    • 1...g4
      • 2.Bb7#
  • Tries
    • 1.Re8?
      • threat
        • 2.Rxe5#
      • 1...fxe3
        • 2.Qg4#
      • 1...g4
        • 2.Bb7#
      • 1...Qxf5!
    • 1.Qe2?
      • threat
        • 2.Sd6#
      • 1...Qxf5
        • 2.Bb7#
      • 1...fxe3
        • 2.Qg4#
      • 1...dxe3!
    • 1.Qg4?
      • threat
        • 2.Bb7#
      • 1...Bxc4
        • 2.Sd6#
      • 1...Qxf5!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Qf3#
      • 1...Kxe3
        • 2.Qe2#
      • 1...exd4
        • 2.Re8#
      • 1...Bd1
        • 2.Bb7#
      • 1...f3
        • 2.Qxf3#
      • 1...g4
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(a);SBLOCK,XP(B)::S(F)
    • B(b);::S(F)
    • B(b);XP(E)::S(F)
    • P(e);OGATEB,XP(B)::QAR2(G)
    • P(e);OGATEB::QAR2(G)
    • P(h);::B(J)
  • Tries
    • Try
      • R(K);P_PINP(g)
      • Threat
        • R1(K),XP(g)
      • Vars
        • P(e);OGATEB,XP(B)::QAR2(G)
        • P(h);::B(J)
      • Refutation
        • Q(k);XS(F)
    • Try
      • Q(G);
      • Threat
        • S(F)
      • Vars
        • Q(k);SBLOCK,XS(F)::B(J)
        • P(e);OGATEB,P_SPINP(e),XP(B)::QAR2(G)
      • Refutation
        • P(c);P_SPINP(c),XP(B)
    • Try
      • Q(G);P_PINP(e)
      • Threat
        • B(J)
      • Vars
        • B(b);XP(E)::S(F)
      • Refutation
        • Q(k);XS(F)
  • Actual
    • S(F);XP(c)
    • Threat
      • QAB1(G)
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINB(b),XP(B)::QAR1(G)
      • P(g);OGATEB,XS(F)::R(K)
      • B(b);::B(J)
      • P(e);::QAB1(G),XP(e)
      • P(h);OGATE::QAR1(G),XP(g)
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