MESON Chess Problem Database

Problem Display
PID: 56320 (1n3B2/2pp1R1p/2pR3K/1p2k1P1/2P3p1/1N1p1PPB/4Pn2/b7 w - - 0 1)

Bantysh, Nikolai Ivanovich

The Problemist, 2004

1n3B2/2pp1R1p/2pR3K/1p2k1P1/2P3p1/1N1p1PPB/4Pn2/b7

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.f4#
  • Tries
    • 1.Bxg4?
      • threat
        • 2.Rf5#
      • 1...cxd6
        • 2.Bg7#
        • 2.Re7#
      • 1...Sxg4+!
    • 1.Rd5+?
      • 1...Ke6
        • 2.Re7#
      • 1...cxd5!
    • 1.Re7+?
      • 1...Kxd6
        • 2.Re3#
        • 2.Re4#
        • 2.Re8#
      • 1...Kf5!
    • 1.e4?
      • threat
        • 2.Rf5#
      • 1...Sxe4
        • 2.f4#
      • 1...cxd6
        • 2.Re7#
      • 1...gxf3!
    • 1.c5?
      • threat
        • 2.Bg7#
      • 1...gxf3
        • 2.Re7#
      • 1...Se4
        • 2.f4#
      • 1...cxd6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.f4#
      • 1...Sxh3
        • 2.Sxd3#
      • 1...gxf3
        • 2.Rf5#
      • 1...cxd6
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(b);SBLOCK::P(C)
  • Tries
    • Try
      • B(E);XP(d)
      • Threat
        • R1(J)
      • Refutation
        • S(b);CHECK,XB(E)
    • Try
      • R(H);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINP(d)::R1(J)
      • Refutation
        • P(g);XR(H)
    • Try
      • R(J);CHECK
      • Refutation
        • K(f);P-FLIGHT,P_SPINP(d)
    • Try
      • P(A);
      • Threat
        • R1(J)
      • Vars
        • S(b);SBLOCK,XP(A)::P(C)
        • P(h);SBLOCK,XR(H)::R(J)
      • Refutation
        • P(d);XP(C)
    • Try
      • P(F);
      • Threat
        • B(K)
      • Vars
        • P(d);XP(C)::R(J)
        • S(b);SBLOCK::P(C)
      • Refutation
        • P(h);XR(H)
  • Actual
    • S(B);
    • Threat
      • P(C)
    • Vars
      • S(b);N_GUARD,XB(E)::S(B),XP(c)
      • P(d);XP(C)::R1(J)
      • P(h);SBLOCK,XR(H)::B(K)
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