MESON Chess Problem Database

Problem Display
PID: 67589 (8/1R6/2pPbR2/2k5/4Q3/8/6N1/7K w - - 0 1)

Subotic, Miroslav

Troll, 2002

8/1R6/2pPbR2/2k5/4Q3/8/6N1/7K

#2

6 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Qd4#
    • 1...Bd5
      • 2.Qb4#
  • Tries
    • 1.Se1?
      • 1...Kxd6
        • 2.Qd4#
      • 1...Ba2
        • 2.Sd3#
      • 1...Bb3
        • 2.Sd3#
      • 1...Bh3
        • 2.Sd3#
      • 1...Bg4
        • 2.Sd3#
      • 1...Bd5
        • 2.Sd3#
      • 1...Bf5
        • 2.Sd3#
      • 1...Bd7
        • 2.Sd3#
      • 1...Bf7
        • 2.Sd3#
      • 1...Bc8
        • 2.Sd3#
      • 1...Bg8
        • 2.Sd3#
      • 1...Bc4!
    • 1.Se3?
      • threat
        • 2.Qb4#
      • 1...Kxd6
        • 2.Qd4#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Bd5!
    • 1.Rf4?
      • threat
        • 2.Qd4#
      • 1...Bd5
        • 2.Qb4#
      • 1...Kxd6!
    • 1.Rf5+?
      • 1...Kxd6
        • 2.Qf4#
        • 2.Qe5#
      • 1...Bd5
        • 2.Qb4#
      • 1...Bxf5!
    • 1.Rb4?
      • threat
        • 2.Qd4#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Kxd6!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qb4#
      • 1...Kxd6
        • 2.Qd4#
      • 1...Bc4
        • 2.Qe3#
      • 1...Bd5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P_SPINB(c),S_FLIGHT,XP(D)::QAR2(C)
    • B(c);SBLOCK::QAB1(C)
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);P_SPINB(c),S_FLIGHT,XP(D)::QAR2(C)
        • B(c);::S(B)
        • B(c);P_PINQ(C)::S(B)
      • Refutation
        • B(c);
    • Try
      • S(B);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);P_SPINB(c),S_FLIGHT,XP(D)::QAR2(C)
        • B(c);N_GUARD::QAR1(C),XB(c)
      • Refutation
        • B(c);P_PINQ(C)
    • Try
      • R(E);
      • Threat
        • QAB1(C)
      • Vars
        • B(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XP(D)
    • Try
      • R(E);CHECK
      • Vars
        • B(c);P_SPINB(c)::QAB1(C)
      • Refutation
        • B(c);XR(E)
    • Try
      • R(F);
      • Threat
        • QAB1(C)
      • Vars
        • B(c);N_GUARD::QAR1(C),XB(c)
      • Refutation
        • K(a);P_SPINB(c),S_FLIGHT,XP(D)
  • Actual
    • S(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);P_SPINB(c),S_FLIGHT,XP(D)::QAR2(C)
      • B(c);SBLOCK::QAB(C)
      • B(c);P_PINQ(C)::S(B)
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