MESON Chess Problem Database

Problem Display
PID: 102875 (3K3B/5p2/3R1R1p/3pk1p1/4r1r1/1pPp3Q/4p3/3qN2b w - - 0 1)

Klemanic, Emil

3rd Prize, Praca, 1995

3K3B/5p2/3R1R1p/3pk1p1/4r1r1/1pPp3Q/4p3/3qN2b

#2

7 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sxd3#
    • 1...Qc1
      • 2.Sxd3#
    • 1...Rg1
      • 2.Qf5#
    • 1...Rg2
      • 2.Sf3#
      • 2.Qf5#
    • 1...Rg3
      • 2.Qf5#
    • 1...Rf4
      • 2.Rfe6#
    • 1...Rh4
      • 2.Qf5#
    • 1...Bf3
      • 2.Sxf3#
    • 1...d2
      • 2.Sd3#
  • Tries
    • 1.Qxg4?
      • threat
        • 2.Rfe6#
        • 2.Qf5#
      • 1...Rf4
        • 2.Rfe6#
      • 1...Rxg4!
    • 1.Qf3?
      • threat
        • 2.Rfe6#
        • 2.Qf5#
      • 1...Bxf3
        • 2.Sxf3#
      • 1...Ref4
        • 2.Rxd5#
      • 1...Rgf4!
  • Keys
    • 1.Qxd3!
      • threat
        • 2.Rxd5#
      • 1...Qxd3
        • 2.Sxd3#
      • 1...Re3
        • 2.Qf5#
      • 1...Ra4
        • 2.Qf5#
      • 1...Rb4
        • 2.Qf5#
      • 1...Rc4
        • 2.Qf5#
      • 1...Rd4
        • 2.Qf5#
      • 1...Ref4
        • 2.Rfe6#
      • 1...d4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD::S(A),XP(e)
    • R(g);OGATE::QAR1(C)
    • R(g);SBLOCK::B(G)+R(E),DCHECK
    • B(b);N_GUARD::S(A),XB(b)
    • P(e);S_CUTQ(a)::S(A)
  • Tries
    • Try
      • Q(C);XR(g)
      • Threat
        • DUALS(2)
      • Vars
        • R(f);::B(G)+R(E),DCHECK
      • Refutation
        • R(f);XQ(C)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XQ(C)::S(A),XB(b)
        • R(f);::R1(D),XP(h)
      • Refutation
        • R(g);
  • Actual
    • Q(C);XP(e)
    • Threat
      • R1(D),XP(h)
    • Vars
      • Q(a);XQ(C)::S(A),XQ(a)
      • R(f);OGATE::QAR1(C)
      • R(f);SBLOCK::B(G)+R(E),DCHECK
      • P(h);OGATEB::QAR(C)
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