MESON Chess Problem Database

Problem Display
PID: 267978 (2Q5/3p3n/K7/2bPN3/4kBP1/1n3NP1/8/3R4 w - - 0 1)

Turoverov, Valentin Alekseevich

Shakhmatnaya kompozitsiya, 1995

2Q5/3p3n/K7/2bPN3/4kBP1/1n3NP1/8/3R4

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qc2#
    • 1...Bf2
      • 2.Qc2#
    • 1...Ba3
      • 2.Qc2#
    • 1...Be3
      • 2.Qc2#
    • 1...Bb4
      • 2.Qc2#
    • 1...Bb6
      • 2.Qc2#
    • 1...Bd6
      • 2.Qc2#
    • 1...Ba7
      • 2.Qc2#
    • 1...Be7
      • 2.Qc2#
    • 1...Bf8
      • 2.Qc2#
    • 1...Sg5
      • 2.Sxg5#
    • 1...Sf6
      • 2.Sg5#
    • 1...Sf8
      • 2.Sg5#
    • 1...d6
      • 2.Qf5#
  • Tries
    • 1.Qxc5?
      • threat
        • 2.Re1#
        • 2.Qe3#
        • 2.Qc2#
      • 1...Sa1
        • 2.Sd2#
        • 2.Re1#
        • 2.Rd4#
        • 2.Qe3#
        • 2.Qb4#
        • 2.Qd4#
        • 2.Qc4#
      • 1...Sc1
        • 2.Sd2#
        • 2.Rd4#
        • 2.Qe3#
        • 2.Qb4#
        • 2.Qd4#
        • 2.Qc4#
      • 1...Sd2
        • 2.Sxd2#
        • 2.Re1#
        • 2.Qd4#
      • 1...Sd4
        • 2.Sd2#
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Sxc5+!
  • Keys
    • 1.Qb7!
      • threat
        • 2.d6#
      • 1...Bd6
        • 2.Re1#
      • 1...Sd4
        • 2.Sd2#
      • 1...Sa5
        • 2.Qb1#
      • 1...Sf6
        • 2.Sg5#
      • 1...d6
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • B(c);OGATE::QAB(I)
    • S(e);N_GUARD::S(B),XS(e)
    • S(e);N_GUARD::S(B)
    • P(d);OGATE::QAB1(I)
  • Tries
    • Try
      • Q(I);XB(c)
      • Threat
        • DUALS(3)
      • Refutation
        • S(a);CHECK,XQ(I)
  • Actual
    • Q(I);
    • Threat
      • QAB(I)+P(F)
    • Vars
      • B(c);N_GUARD::R(A)
      • S(a);N_GUARD,SBLOCK::S(B)
      • S(a);OGATE::QAB(I)
      • S(e);N_GUARD::S(B)
      • P(d);OGATE::QAB(I),XS(e)
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