MESON Chess Problem Database

Problem Display
PID: 138495 (NK6/2B4P/b1p5/pkP3R1/p6r/Pn5r/1N2P1P1/1QR2Bq1 w - - 0 1)

Visserman, Eeltje

3rd Prize, BCF 116. Ty., 1967-1968

NK6/2B4P/b1p5/pkP3R1/p6r/Pn5r/1N2P1P1/1QR2Bq1

#2

13 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Bf4?
      • threat
        • 2.Sc7#
      • 1...Qxc5
        • 2.e3#
      • 1...Sxc5
        • 2.Sd3#
      • 1...Rxh7!
    • 1.Qd3+?
      • 1...Rc4
        • 2.Qxc4#
      • 1...Rxd3!
    • 1.e3+?
      • 1...Rc4
        • 2.Bxc4#
      • 1...Qxf1!
    • 1.e4+?
      • 1...Rd3
        • 2.Bxd3#
        • 2.Qxd3#
      • 1...Qxf1!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Sc7#
      • 1...Qxc5
        • 2.e4#
      • 1...Rxh7
        • 2.Qd3#
      • 1...Sxc5
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(J);
      • Threat
        • S(L)
      • Vars
        • Q(a);N_GUARD,P_SPINQ(a),XP(H)::B(C)+P(E)
        • S(b);P_SPINS(b),XP(H)::QAR(A)+S(D)
      • Refutation
        • R(e);XP(K)
    • Try
      • Q(A);CHECK
      • Vars
        • R(e);N_GUARD,P_SPINR(e)::QAB1(A),XR(e)
      • Refutation
        • R(c);XQ(A)
    • Try
      • P(E);CHECK
      • Vars
        • R(e);N_GUARD,P_SPINR(e)::B(C),XR(e)
      • Refutation
        • Q(a);XB(C)
    • Try
      • P(E);CHECK
      • Refutation
        • Q(a);XB(C)
  • Actual
    • B(J);
    • Threat
      • S(L)
    • Vars
      • Q(a);N_GUARD,P_SPINQ(a),XP(H)::B(C)+P(E)
      • R(e);N_GUARD,XP(K)::QAB(A)
      • S(b);P_SPINS(b),XP(H)::QAR(A)+S(D)
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