MESON Chess Problem Database

Problem Display
PID: 11978 (2R5/8/2N5/2B3p1/pK3p1r/7p/Bp1R2bb/1Nk2nQ1 w - - 0 1)

Goldschmeding, Cornelis

The Problemist, 1973

2R5/8/2N5/2B3p1/pK3p1r/7p/Bp1R2bb/1Nk2nQ1

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Qxf1#
    • 1...Be4
      • 2.Qxf1#
    • 1...Bd5
      • 2.Qxf1#
    • 1...Bxc6
      • 2.Qxf1#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Se2#
      • 1...f3
        • 2.Bd6#
      • 1...Bf3!
    • 1.Bd4?
      • threat
        • 2.Bxb2#
      • 1...f3
        • 2.Se5#
      • 1...a3!
    • 1.Bd6?
      • threat
        • 2.Qc5#
      • 1...f3+
        • 2.Sd4#
      • 1...Be4
        • 2.Qxf1#
      • 1...Bd5
        • 2.Qxf1#
      • 1...Bxg1!
    • 1.Qd4?
      • threat
        • 2.Qxb2#
        • 2.Qc3#
        • 2.Qc4#
      • 1...Sxd2
        • 2.Qxd2#
      • 1...Be4
        • 2.Qxb2#
      • 1...Bd5
        • 2.Qxb2#
        • 2.Qc3#
      • 1...Se3
        • 2.Qxb2#
      • 1...a3
        • 2.Qc3#
        • 2.Qc4#
      • 1...f3!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sd3#
      • 1...f3+
        • 2.Bd4#
      • 1...Be4
        • 2.Qxf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(d);N_GUARD::QAR(B),XS(b)
    • B(d);N_GUARD,XS(G)::QAR(B),XS(b)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • P(h);P_PINS(G),S_CUTB(d)::R(H)+B(F)
      • Refutation
        • B(d);
    • Try
      • B(F);
      • Threat
        • B(F),XP(c)
      • Vars
        • P(h);P_PINB(F),S_CUTB(d)::R(H)+S(G)
      • Refutation
        • P(g);
    • Try
      • B(F);
      • Threat
        • QAR(B)
      • Vars
        • P(h);CHECK,S_CUTB(d)::R(H)+S(G)
        • B(d);N_GUARD::QAR(B),XS(b)
      • Refutation
        • B(e);N_SPINS(b),XQ(B)
    • Try
      • Q(B);N_PINS(b)
      • Threat
        • DUALS(3)
      • Vars
        • S(b);OGATE,XR(D)::QAB1(B),XS(b)
        • B(d);::QAB1(B),XP(c)
        • S(b);::QAB1(B),XP(c)
      • Refutation
        • P(h);P_PINQ(B)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • P(h);CHECK,S_CUTB(d)::R(H)+B(F)
      • B(d);N_GUARD::QAR(B),XS(b)
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