MESON Chess Problem Database

Problem Display
PID: 54985 (3rB3/8/4pP1p/1N1PpR1K/2Rbkp2/1Q2Np2/4P3/1b4n1 w - - 0 1)

Shanshin, Valery Yurevich

Slesarenko, Anatoly Vasilevich

5th Prize, Die Schwalbe, 1999/I

3rB3/8/4pP1p/1N1PpR1K/2Rbkp2/1Q2Np2/4P3/1b4n1

#2

10 + 10

23 Die Schwalbe 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sxd6#
    • 1...Ra8
      • 2.Sd6#
    • 1...Rb8
      • 2.Sd6#
    • 1...Rc8
      • 2.Sd6#
    • 1...Rxe8
      • 2.Sd6#
    • 1...Ba2
      • 2.Qd3#
    • 1...Bd3
      • 2.Qxd3#
  • Tries
    • 1.Bc6?
      • threat
        • 2.d6#
      • 1...Rxd5
        • 2.Sd6#
      • 1...fxe3
        • 2.Qxb1#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Rc8
        • 2.Sd6#
      • 1...exd5!
    • 1.Bg6?
      • threat
        • 2.Rg5#
      • 1...fxe3
        • 2.Sc3#
      • 1...exf5
        • 2.Bxf5#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Rg8
        • 2.Sd6#
      • 1...fxe2!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Rxe5#
      • 1...Kxd5
        • 2.Bc6#
      • 1...Kxf5
        • 2.Bg6#
      • 1...Rxd5
        • 2.Qxb1#
      • 1...exf5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(j);N_GUARD::S(E),XR(j)
    • R(j);N_GUARD::S(E)
    • R(j);N_GUARD,XB(J)::S(E)
    • B(a);N_GUARD::QAB1(B)
    • B(a);N_GUARD::QAB1(B),XB(a)
  • Tries
    • Try
      • B(J);
      • Threat
        • B(J)+P(F)
      • Vars
        • R(j);N_GUARD,P_SPINR(j),XP(F)::S(E)
        • P(f);SBLOCK,XS(C)::QAB(B),XB(a)
        • B(a);N_GUARD::QAB1(B),XB(a)
        • R(j);N_GUARD::S(E),XR(j)
        • R(j);N_GUARD::S(E)
      • Refutation
        • P(h);P_SPINP(h),XP(F)
    • Try
      • B(J);
      • Threat
        • B(J)+R(G)
      • Vars
        • P(f);SBLOCK,XS(C)::S(E)
        • P(h);OGATE,P_SPINP(h),XR(G)::B(J),XP(h)
        • B(a);N_GUARD::QAB1(B),XB(a)
        • R(j);N_GUARD::S(E)
      • Refutation
        • P(c);XP(A)
  • Actual
    • S(C);
    • Threat
      • R1(G),XP(g)
    • Vars
      • K(e);N_SPINB(d),OGATEB,P_SPINP(g),S_FLIGHT,XP(F)::B(J)
      • K(e);N_SPINB(d),OGATEB,S_FLIGHT,XR(G)::B(J)
      • R(j);SBLOCK,XP(F)::QAB(B),XB(a)
      • P(h);SBLOCK,XR(G)::S(E)
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