MESON Chess Problem Database

Problem Display
PID: 166166 (2r1r3/5B1p/8/8/2PPp3/b1NkP1R1/K1R1p1n1/N3Bb1Q w - - 0 1)

Basisty, Mark Borisovich

Tkachenko, Sergiy Ivanovich

Comm., StrateGems, 2016

2r1r3/5B1p/8/8/2PPp3/b1NkP1R1/K1R1p1n1/N3Bb1Q

#2

11 + 9

145 StrateGems 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sb1?
      • threat
        • 2.Rd2#
        • 2.Rc3#
      • 1...Rxc4
        • 2.Bxc4#
        • 2.Rd2#
      • 1...Sxe3
        • 2.Rd2#
      • 1...Re6
        • 2.Rc3#
      • 1...Bc1
        • 2.Rc3#
      • 1...Bb2
        • 2.Rd2#
      • 1...Bb4!
    • 1.Sxe2?
      • threat
        • 2.Rd2#
      • 1...Bxe2
        • 2.Rc3#
      • 1...Sxe1
        • 2.Sf4#
      • 1...Bc1
        • 2.Sxc1#
      • 1...Bb4
        • 2.Sc1#
      • 1...Re6!
    • 1.Sa4?
      • threat
        • 2.Rd2#
        • 2.Rc3#
      • 1...Rxc4
        • 2.Bxc4#
        • 2.Rd2#
      • 1...Sxe3
        • 2.Rd2#
      • 1...Re6
        • 2.Rc3#
      • 1...Bc1
        • 2.Rc3#
      • 1...Bb2
        • 2.Sxb2#
        • 2.Rd2#
      • 1...Bb4
        • 2.Sb2#
      • 1...Sxe1!
    • 1.Sd5?
      • threat
        • 2.Rc3#
      • 1...Rxc4
        • 2.Rd2#
      • 1...Sxe1
        • 2.Sf4#
      • 1...Bb4
        • 2.Sxb4#
      • 1...Bb2
        • 2.Sb4#
      • 1...Sxe3!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sf2#
      • 1...Kxe4
        • 2.Qxh7#
      • 1...Rxe4
        • 2.Rc3#
      • 1...Sxe3
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);P_SPINS(c),XP(G)::R1(E)
        • R(i);::R1(E)
        • B(d);::R1(E)
      • Refutation
        • B(d);
    • Try
      • S(F);XP(b)
      • Threat
        • R1(E)
      • Vars
        • B(a);SBLOCK,XS(F)::R1(E)
        • S(c);N_GUARD,XB(B)::S(F)
        • B(d);N_GUARD::S(F),XB(d)
        • B(d);N_GUARD::S(F)
      • Refutation
        • R(i);
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);P_SPINS(c),XP(G)::R1(E)
        • R(i);::R1(E)
        • B(d);::R1(E)
        • B(d);N_GUARD::S(F)
      • Refutation
        • S(c);XB(B)
    • Try
      • S(F);
      • Threat
        • R1(E)
      • Vars
        • R(h);SBLOCK,XP(I)::R1(E)
        • S(c);N_GUARD,XB(B)::S(F)
        • B(d);N_GUARD::S(F),XB(d)
        • B(d);N_GUARD::S(F)
      • Refutation
        • S(c);P_SPINS(c),XP(G)
  • Actual
    • S(F);XP(f)
    • Threat
      • S(F)
    • Vars
      • K(e);OGATEB,P_SPINS(c),S_FLIGHT,XS(F)::QAB(C),XP(g)
      • R(i);SBLOCK,XS(F)::R1(E)
      • S(c);P_SPINS(c),XP(G)::R1(E)
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