MESON Chess Problem Database

Problem Display
PID: 183703 (b1N5/p1ppBRp1/Q1n1kpPP/1K6/3RP1p1/5N2/8/2n2B2 w - - 0 1)

Basisty, Mark Borisovich

Tkachenko, Sergiy Ivanovich

Vasilenko, Anatoly Grigorovich

The Problemist, 2018

b1N5/p1ppBRp1/Q1n1kpPP/1K6/3RP1p1/5N2/8/2n2B2

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.exf5#
    • 1...gxh6
      • 2.Rxf6#
  • Tries
    • 1.Ba3?
      • threat
        • 2.Re7#
      • 1...f5
        • 2.exf5#
      • 1...d6!
    • 1.Bb4?
      • threat
        • 2.Re7#
      • 1...f5
        • 2.exf5#
      • 1...d6!
    • 1.Bc5?
      • threat
        • 2.Re7#
      • 1...f5
        • 2.exf5#
      • 1...d6!
    • 1.Bxf6?
      • threat
        • 2.Sg5#
      • 1...gxf3
        • 2.Bh3#
      • 1...gxf6
        • 2.Re7#
      • 1...gxh6!
    • 1.Bd8?
      • threat
        • 2.Re7#
      • 1...f5
        • 2.exf5#
      • 1...d6!
    • 1.Bf8?
      • threat
        • 2.Re7#
      • 1...f5
        • 2.exf5#
      • 1...d6!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Bc4#
      • 1...Sxd4+
        • 2.Sxd4#
      • 1...cxd6
        • 2.Rxd6#
      • 1...Se2
        • 2.Qa2#
      • 1...Sd3
        • 2.Qa2#
      • 1...Sb4
        • 2.Re7#
      • 1...Sa5
        • 2.Re7#
      • 1...Se5
        • 2.Re7#
      • 1...Se7
        • 2.Rxe7#
      • 1...Sb8
        • 2.Re7#
      • 1...Sd8
        • 2.Re7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 2
  • Sets
    • P(e);OGATE::P(D),XP(e)
    • P(i);N_GUARD,XP(H)::R1(J),XP(e)
  • Tries
    • Try
      • B(I);
      • Threat
        • R1(J)
      • Vars
        • P(e);OGATE::P(D),XP(e)
      • Refutation
        • P(h);N_SPINS(c)
    • Try
      • B(I);
      • Threat
        • R1(J)
      • Vars
        • P(e);OGATE::P(D),XP(e)
      • Refutation
        • P(h);N_SPINS(c)
    • Try
      • B(I);
      • Threat
        • R1(J)
      • Vars
        • P(e);OGATE::P(D),XP(e)
      • Refutation
        • P(h);N_SPINS(c)
    • Try
      • B(I);XP(e)
      • Threat
        • S(B)
      • Vars
        • P(b);OGATEB,XS(B)::B(A)
        • P(i);SBLOCK,XB(I)::R1(J)
      • Refutation
        • P(i);XP(H)
    • Try
      • B(I);
      • Threat
        • R1(J)
      • Vars
        • P(e);OGATE::P(D),XP(e)
      • Refutation
        • P(h);N_SPINS(c)
    • Try
      • B(I);
      • Threat
        • R1(J)
      • Vars
        • P(e);OGATE::P(D),XP(e)
      • Refutation
        • P(h);N_SPINS(c)
  • Actual
    • B(I);N_PINS(c)
    • Threat
      • B(A)
    • Vars
      • S(c);CHECK,XR(C)::S(B),XS(c)
      • P(g);OGATE,XB(I)::R1(C),XP(g)
      • S(a);N_GUARD::QAB(F)
      • S(c);N_GUARD::R1(J)
      • S(c);N_GUARD::R1(J),XS(c)
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