MESON Chess Problem Database

Problem Display
PID: 189754 (5nBB/3bQ3/p3qN1p/1P4bR/P1k4p/R4Pp1/3rP3/5NK1 w - - 0 1)

Buechler, Eugen

3rd HM., Alkotmany, 1912

5nBB/3bQ3/p3qN1p/1P4bR/P1k4p/R4Pp1/3rP3/5NK1

#2

12 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Qc5#
    • 1...Bxf6
      • 2.Qc5#
  • Tries
    • 1.Sxd2+?
      • 1...Bxd2
        • 2.Qc5#
      • 1...Kd4!
    • 1.Rc3+?
      • 1...Kd4
        • 2.Qc5#
      • 1...Kxc3!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sb6#
      • 1...Qe3+
        • 2.Sdxe3#
      • 1...Qb6+
        • 2.Sde3#
        • 2.Sxb6#
      • 1...Be3+
        • 2.Sdxe3#
      • 1...Kxd5
        • 2.Se3#
      • 1...Qxd5
        • 2.Rc3#
      • 1...Qxe7
        • 2.Rc3#
      • 1...Rxd5
        • 2.Rc3#
      • 1...Bxe7
        • 2.Rc3#
      • 1...Qe5
        • 2.Qb4#
      • 1...Qd6
        • 2.Rc3#
      • 1...Qf6
        • 2.Qb4#
      • 1...Bf6
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • B(e);::QAR1(J)
    • B(e);XS(I)::QAR1(J)
  • Tries
    • Try
      • S(A);CHECK,XR(a)
      • Vars
        • B(e);XS(A)::QAR1(J)
      • Refutation
        • K(c);N_SPINQ(g),P-FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(c);N_SPINQ(g),P-FLIGHT::QAB1(J)
      • Refutation
        • K(c);N_SPINQ(g),P-FLIGHT,XR(D)
  • Actual
    • S(I);N_PINQ(g)
    • Threat
      • S(I)
    • Vars
      • Q(g);CHECK::B(K)+S(I),DCHECK,XQ(g)
      • B(e);CHECK,N_GUARD::S(I),XB(e)
      • K(c);P_SPINB(e),P_SPINQ(g),S_FLIGHT,XS(I)::S(A)
      • Q(g);P_SPINQ(g),XS(I)::R1(D)
      • Q(g);XQ(J)::R1(D)
      • R(a);SBLOCK,XS(I)::R1(D)
      • B(e);XQ(J)::R1(D)
      • Q(g);::QAR1(J)
      • Q(g);::R1(D)
      • B(e);::QAR1(J)
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