MESON Chess Problem Database

Problem Display
PID: 227379 (8/8/b2B4/5p2/R1pkBQp1/5p2/PP6/5K2 w - - 0 1)

Moller, J?

Tidskrift for Schack, 1910

8/8/b2B4/5p2/R1pkBQp1/5p2/PP6/5K2

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...fxe4
      • 2.Qd2#
  • Tries
    • 1.Kf2?
      • threat
        • 2.Qe3#
        • 2.Qe5#
      • 1...fxe4
        • 2.Qd2#
      • 1...g3+!
    • 1.Bc7?
      • threat
        • 2.Bb6#
      • 1...Kc5
        • 2.Qe5#
      • 1...fxe4!
    • 1.Ra3?
      • threat
        • 2.Bxf3#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
        • 2.Qe3#
        • 2.Qe5#
      • 1...fxe4
        • 2.Qd2#
        • 2.Qe5#
      • 1...Bb7
        • 2.Bc6#
        • 2.Bxb7#
        • 2.Qe3#
        • 2.Qe5#
      • 1...f2
        • 2.Bh1#
        • 2.Bg2#
        • 2.Bf3#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
        • 2.Qe3#
        • 2.Qe5#
      • 1...c3+!
  • Keys
    • 1.b4!
      • threat
        • 2.Be5#
      • 1...c3+
        • 2.b5#
      • 1...Kc3
        • 2.Be5#
      • 1...fxe4
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);SBLOCK,XB(E)::QAR2(F)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(e);SBLOCK,XB(E)::QAR2(F)
      • Refutation
        • P(d);CHECK
    • Try
      • B(G);
      • Threat
        • B(G)
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAR2(F)
      • Refutation
        • P(e);XB(E)
    • Try
      • R(D);N_PINP(b)
      • Threat
        • DUALS(6)
      • Refutation
        • P(b);CHECK
  • Actual
    • P(C);N_PINP(b)
    • Threat
      • B(G)
    • Vars
      • P(b);CHECK,SBLOCK::R(D)+P(C)
      • K(c);S_FLIGHT::B(G)
      • P(e);P_SPINP(e),SBLOCK,XB(E)::QAR2(F)
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