MESON Chess Problem Database

Problem Display
PID: 63192 (1b6/3Bn3/4Q1p1/RN2P3/3Pkp2/R4n2/N1p2P2/BbK5 w - - 0 1)

Rudenko, Valentin Fedorovich

Slesarenko, Anatoly Vasilevich

1st Prize, Melnichenko-65 JT, 2004

1b6/3Bn3/4Q1p1/RN2P3/3Pkp2/R4n2/N1p2P2/BbK5

#2

11 + 8

23 Die Schwalbe 2005
56 The Problemist 2005
3485 Sachova skladba 2006
15323 FIDE Album (2004-2006) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Ba7
      • 2.Sd6#
    • 1...Sxe5
      • 2.f3#
    • 1...Sd5
      • 2.Qxg6#
    • 1...Sf5
      • 2.Bc6#
      • 2.Qc6#
    • 1...Sc6
      • 2.Bxc6#
      • 2.Qxc6#
    • 1...Sc8
      • 2.Bc6#
      • 2.Qc6#
    • 1...Sg8
      • 2.Bc6#
      • 2.Qc6#
  • Tries
    • 1.Bc6+?
      • 1...Sd5
        • 2.Bxd5#
        • 2.Qxg6#
      • 1...Sxc6!
    • 1.Qc4?
      • threat
        • 2.Sac3#
        • 2.Sbc3#
      • 1...Bxa2
        • 2.Sc3#
      • 1...Sxd4
        • 2.Qxd4#
      • 1...Sxe5
        • 2.dxe5#
      • 1...Se1
        • 2.d5#
      • 1...Sg1
        • 2.d5#
      • 1...Sh2
        • 2.d5#
      • 1...Sh4
        • 2.d5#
      • 1...Sg5
        • 2.d5#
      • 1...Sd5
        • 2.Qd3#
      • 1...Sd2!
    • 1.Qd5+?
      • 1...Kxd5
        • 2.Sd6#
      • 1...Sxd5!
    • 1.Qf5+?
      • 1...Kd5
        • 2.Sd6#
      • 1...Sxf5
        • 2.Bc6#
      • 1...gxf5!
    • 1.Qc6+?
      • 1...Sd5
        • 2.Qxg6#
      • 1...Sxc6!
    • 1.Qxg6+?
      • 1...Kd5
        • 2.Sd6#
      • 1...Sf5
        • 2.Bc6#
        • 2.Qc6#
      • 1...Sxg6!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qxf3#
      • 1...Kd5
        • 2.Sd6#
      • 1...Sxd4
        • 2.Sbc3#
      • 1...Sxe5
        • 2.Sac3#
      • 1...Se1
        • 2.Sac3#
      • 1...Sg1
        • 2.Sac3#
      • 1...Sd2
        • 2.Sac3#
      • 1...Sh2
        • 2.Sac3#
      • 1...Sh4
        • 2.Sac3#
      • 1...Sg5
        • 2.Sac3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • B(h);N_GUARD,P_SPINB(h),XP(I)::S(H)
    • B(h);N_GUARD::S(H),XB(h)
    • B(h);N_GUARD::S(H)
    • S(c);OGATE,P_SPINS(c),XP(I)::P(D)
    • S(g);N_GUARD,SBLOCK::QAB(J),XP(f)
  • Tries
    • Try
      • B(K);CHECK
      • Refutation
        • S(g);XB(K)
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XS(C)::S(H)
        • S(c);OGATE,P_SPINS(c),XP(F)::QAR1(J),XS(c)
        • S(c);OGATE,XP(I)::QAR(J)+P(F),XS(c)
        • S(c);N_GUARD::QAR(J)+P(F)
        • S(g);SBLOCK::QAB1(J)
      • Refutation
        • S(c);
    • Try
      • Q(J);CHECK
      • Vars
        • K(d);S_FLIGHT,XQ(J)::R(G)+S(H)
      • Refutation
        • S(g);XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • K(d);S_FLIGHT::R(G)+S(H)
        • S(g);SBLOCK,XQ(J)::B(K)
      • Refutation
        • P(f);XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g),SBLOCK::QAB(J),XP(f)
      • Refutation
        • S(g);XQ(J)
    • Try
      • Q(J);CHECK,XP(f)
      • Vars
        • K(d);S_FLIGHT::R(G)+S(H)
      • Refutation
        • S(g);XQ(J)
  • Actual
    • Q(J);
    • Threat
      • QAB1(J),XS(c)
    • Vars
      • K(d);S_FLIGHT::R(G)+S(H)
      • S(c);SBLOCK,XP(F)::S(H)
      • S(c);XP(I)::S(C)
      • S(c);::S(C)
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