MESON Chess Problem Database

Problem Display
PID: 274281 (8/3Rb2r/6B1/6p1/K5Q1/2Nn1npp/1BNkPR2/8 w - - 0 1)

Jonsson, Christer

Springaren, 1991

8/3Rb2r/6B1/6p1/K5Q1/2Nn1npp/1BNkPR2/8

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...g2
      • 2.exd3#
      • 2.exf3#
      • 2.e3#
      • 2.e4#
  • Tries
    • 1.Qf4+?
      • 1...Kxc2
        • 2.Qc1#
      • 1...gxf4!
  • Keys
    • 1.Qxg3!
      • threat
        • 2.exd3#
        • 2.exf3#
        • 2.e3#
        • 2.e4#
      • 1...Rh4+
        • 2.e4#
      • 1...Kxc2
        • 2.exf3#
      • 1...Bc5
        • 2.e3#
      • 1...Bd6
        • 2.exd3#
      • 1...Se1
        • 2.exd3#
        • 2.e3#
        • 2.e4#
      • 1...Sg1
        • 2.Qxd3#
      • 1...Sh2
        • 2.Qxd3#
        • 2.exd3#
        • 2.e3#
        • 2.e4#
      • 1...Sd4
        • 2.Qxd3#
      • 1...Sh4
        • 2.Qxd3#
        • 2.exd3#
        • 2.e3#
        • 2.e4#
      • 1...Se5
        • 2.exd3#
        • 2.e3#
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,XS(B)::QAR1(G)
      • Refutation
        • P(f);XQ(G)
  • Actual
    • Q(G);XP(d)
    • Threat
      • DUALS(4)
    • Vars
      • R(h);CHECK::R(D)+P(C)
      • K(a);P-FLIGHT,XS(B)::R(D)+P(C),XS(c)
      • B(g);::R(D)+P(C)
      • B(g);N_SPINS(b)::R(D)+P(C),XS(b)
      • S(c);OGATE::QAR1(G),XS(b)
      • S(c);N_SPINS(b),OGATE::QAR1(G),XS(b)
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