MESON Chess Problem Database

Problem Display
PID: 201581 (1b6/2NnKN1p/4P2r/r1R3Q1/3k4/P4P2/1PP1b3/1q6 w - - 0 1)

Simay-Molnar, Aladar

9th HM., Kagans Neueste Schachnachrichten, 1922

1b6/2NnKN1p/4P2r/r1R3Q1/3k4/P4P2/1PP1b3/1q6

#2

10 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Qg1#
    • 1...Qg1
      • 2.Qxg1#
    • 1...Qxb2
      • 2.Qg1#
    • 1...Rxc5
      • 2.Qf4#
    • 1...Rxe6+
      • 2.Sxe6#
    • 1...Bd1
      • 2.Qg1#
    • 1...Bf1
      • 2.Qg1#
    • 1...Bd3
      • 2.c3#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sb6
      • 2.Qe5#
    • 1...Sf6
      • 2.Qe5#
    • 1...Sf8
      • 2.Qe5#
  • Tries
    • 1.Rd5+?
      • 1...Kc4
        • 2.Sd6#
        • 2.Qf4#
        • 2.Qg4#
      • 1...Rxd5!
    • 1.Qd2+?
      • 1...Bd3
        • 2.Qf2#
      • 1...Kxc5!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sc6#
      • 1...Rxe6+
        • 2.Sxe6#
      • 1...Kxc5
        • 2.Qe3#
      • 1...Qxc2
        • 2.Qg1#
      • 1...Rxc5
        • 2.Qf4#
      • 1...Bxf3
        • 2.Rc4#
      • 1...Sxc5
        • 2.c3#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Ra6
        • 2.Rd5#
      • 1...Bb5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 9
  • Sets
    • Q(a);N_GUARD::QAB(F)
    • Q(a);N_GUARD::QAB(F),XQ(a)
    • Q(a);N_GUARD,XP(A)::QAB(F)
    • R(d);SBLOCK,XR(E)::QAR2(F)
    • R(e);CHECK,XP(G)::S(H),XR(e)
    • B(b);S_CUTQ(a)::QAB(F)
    • B(b);SBLOCK::P(B)
    • S(f);N_GUARD::QAB1(F),XS(f)
    • S(f);N_GUARD::QAB1(F)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • R(d);XR(E)
    • Try
      • Q(F);CHECK
      • Vars
        • B(b);OGATE,P_SPINB(b)::QAB(F)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
  • Actual
    • S(J);
    • Threat
      • S(J)
    • Vars
      • R(e);CHECK,XP(G)::S(H),XR(e)
      • K(c);S_FLIGHT,XR(E)::QAB(F)
      • Q(a);N_GUARD,XP(B)::QAB(F)
      • R(d);SBLOCK,XR(E)::QAR2(F)
      • B(b);N_GUARD,XP(D)::R1(E)
      • S(f);SBLOCK,XR(E)::P(B)
      • S(f);OGATE,XS(J)::QAB1(F),XS(f)
      • R(d);N_GUARD::R1(E)
      • B(b);S_CUTR(d)::R1(E)
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