MESON Chess Problem Database

Problem Display
PID: 198817 (Kb6/1P1Q3r/p3P3/4NkpN/qP2R1p1/5B2/6P1/8 w - - 0 1)

Simay-Molnar, Aladar

6th HM., Kagans Neueste Schachnachrichten, 1921

Kb6/1P1Q3r/p3P3/4NkpN/qP2R1p1/5B2/6P1/8

#2

10 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qc2
      • 2.e7#
    • 1...Qa1
      • 2.e7#
    • 1...Qa3
      • 2.e7#
    • 1...Qxb4
      • 2.e7#
    • 1...Qa5
      • 2.e7#
    • 1...Rxh5
      • 2.Qf7#
    • 1...Rf7
      • 2.Qxf7#
    • 1...Rh8
      • 2.Qf7#
  • Tries
    • 1.Sg7+?
      • 1...Kf6
        • 2.Qf7#
      • 1...Rxg7!
    • 1.Re1?
      • threat
        • 2.Bxg4#
      • 1...Qxb4
        • 2.e7#
      • 1...Rxh5
        • 2.Qf7#
      • 1...Bxe5
        • 2.Be4#
      • 1...gxf3
        • 2.g4#
      • 1...g3
        • 2.Bg4#
      • 1...Qd1!
    • 1.Re3?
      • threat
        • 2.Bxg4#
      • 1...Qxb4
        • 2.e7#
      • 1...Rxh5
        • 2.Qf7#
      • 1...Bxe5
        • 2.Be4#
      • 1...gxf3
        • 2.g4#
      • 1...g3
        • 2.Bg4#
      • 1...Qd1!
    • 1.Rf4+?
      • 1...Kxe5
        • 2.Qd5#
      • 1...gxf4!
  • Keys
    • 1.Re2!
      • threat
        • 2.Bxg4#
      • 1...Qxb4
        • 2.e7#
      • 1...Rxh5
        • 2.Qf7#
      • 1...Bxe5
        • 2.Be4#
      • 1...gxf3
        • 2.g4#
      • 1...g3
        • 2.Bg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::QAB(I)+P(G)
    • Q(a);N_GUARD,XP(C)::QAB(I)+P(G)
    • R(f);N_GUARD,XS(F)::QAR2(I)
    • R(f);N_GUARD::QAR2(I),XR(f)
    • R(f);N_GUARD::QAR2(I)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(I)
      • Refutation
        • R(f);XS(F)
    • Try
      • R(D);
      • Threat
        • B(B),XP(b)
      • Vars
        • Q(a);N_GUARD,XP(C)::QAB(I)+P(G)
        • R(f);N_GUARD,XS(F)::QAR2(I)
        • B(g);SBLOCK,XS(E)::B(B)
        • P(b);OGATE,XB(B)::P(A)
        • P(b);::B(B)
      • Refutation
        • Q(a);
    • Try
      • R(D);
      • Threat
        • B(B),XP(b)
      • Vars
        • Q(a);N_GUARD,XP(C)::QAB(I)+P(G)
        • R(f);N_GUARD,XS(F)::QAR2(I)
        • B(g);SBLOCK,XS(E)::B(B)
        • P(b);OGATE,XB(B)::P(A)
        • P(b);::B(B)
      • Refutation
        • Q(a);
    • Try
      • R(D);CHECK
      • Vars
        • K(c);P-FLIGHT,XS(E)::QAR1(I)
      • Refutation
        • P(d);XR(D)
  • Actual
    • R(D);
    • Threat
      • B(B),XP(b)
    • Vars
      • Q(a);N_GUARD,XP(C)::QAB(I)+P(G)
      • R(f);N_GUARD,XS(F)::QAR2(I)
      • B(g);SBLOCK,XS(E)::B(B)
      • P(b);OGATE,XB(B)::P(A)
      • P(b);::B(B)
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