MESON Chess Problem Database

Problem Display
PID: 261287 (8/2p5/5p2/1b1PkPn1/1Bp1P1K1/4Qpp1/3N1p1b/q7 w - - 0 1)

Goldschmeding, Cornelis

Neue Zurcher Zeitung, 1984

8/2p5/5p2/1b1PkPn1/1Bp1P1K1/4Qpp1/3N1p1b/q7

#2

7 + 11

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Qxc3#
    • 1...Qd4
      • 2.Qf4#
    • 1...Qb1
      • 2.Qc3#
    • 1...Qd1
      • 2.Qc3#
    • 1...Qe1
      • 2.Qc3#
    • 1...Qf1
      • 2.Qc3#
    • 1...Qg1
      • 2.Qc3#
    • 1...Qh1
      • 2.Qc3#
    • 1...Qa2
      • 2.Qc3#
    • 1...Qa4
      • 2.Qc3#
    • 1...Qa5
      • 2.Qc3#
    • 1...Qa6
      • 2.Qc3#
    • 1...Qa8
      • 2.Qc3#
    • 1...Ba4
      • 2.Sxc4#
    • 1...Bc6
      • 2.Sxc4#
    • 1...Bd7
      • 2.Sxc4#
    • 1...Be8
      • 2.Sxc4#
    • 1...Sh3
      • 2.Sxf3#
    • 1...Sxe4
      • 2.Qxe4#
    • 1...Se6
      • 2.Sxf3#
    • 1...Sf7
      • 2.Sxf3#
    • 1...Sh7
      • 2.Sxf3#
  • Tries
    • 1.Bc5?
      • threat
        • 2.Qf4#
      • 1...Sxe4
        • 2.Qxe4#
      • 1...Sh3
        • 2.Sxf3#
      • 1...Se6
        • 2.Sxf3#
      • 1...g2!
  • Keys
    • 1.Qc5!
      • threat
        • 2.d6#
      • 1...Sxe4
        • 2.Sxf3#
      • 1...Qd4
        • 2.Qxc7#
      • 1...Qa7
        • 2.Bc3#
      • 1...Qa8
        • 2.Bc3#
      • 1...Bc6
        • 2.dxc6#
      • 1...Se6
        • 2.dxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 1
    • REMOVED MATES = 17
  • Sets
    • Q(a);N_GUARD::QAB(B),XQ(a)
    • Q(a);P_PINP(D),SBLOCK::QAB1(B)
    • Q(a);N_GUARD::QAB(B)
    • B(g);N_GUARD::S(A),XP(f)
    • B(g);N_GUARD,P_PINP(G)::S(A),XP(f)
    • S(i);N_GUARD::S(A),XP(d)
    • S(i);OGATE,P_SPINS(i),XP(D)::QAR1(B),XS(i)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAB1(B)
      • Vars
        • S(i);OGATE,P_SPINS(i),XP(D)::QAR1(B),XS(i)
        • S(i);N_GUARD::S(A),XP(d)
      • Refutation
        • P(e);
  • Actual
    • Q(B);
    • Threat
      • QAR(B)+P(F)
    • Vars
      • S(i);N_GUARD,SBLOCK,XP(D)::S(A),XP(d)
      • Q(a);P_PINP(D),SBLOCK::QAB(B),XP(k)
      • Q(a);N_GUARD::B(C)
      • B(g);OGATE::QAR(B)+P(F),XB(g)
      • S(i);OGATE::QAR(B)+P(F),XS(i)
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