MESON Chess Problem Database

Problem Display
PID: 87845 (8/NBB2K2/4N3/1RP1Pp2/2kPp3/q1P3bR/b1Q5/8 w - - 0 1)

Tancau, Marcel

Buletin Problemistic, 2000

8/NBB2K2/4N3/1RP1Pp2/2kPp3/q1P3bR/b1Q5/8

#2

12 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Rb4#
    • 1...Qb4
      • 2.Rxb4#
      • 2.cxb4#
    • 1...Qxc5
      • 2.Rxc5#
    • 1...Qa6
      • 2.Rb4#
    • 1...Qxa7
      • 2.Rb4#
    • 1...Be1
      • 2.Qe2#
    • 1...Bf2
      • 2.Qe2#
    • 1...Bh2
      • 2.Qe2#
    • 1...Bf4
      • 2.Qe2#
    • 1...Bh4
      • 2.Qe2#
    • 1...Bxe5
      • 2.Qe2#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Bd5#
      • 1...Qxc5
        • 2.Rxc5#
      • 1...Qxa7
        • 2.Rb4#
      • 1...Bxf4
        • 2.Qe2#
      • 1...Qxc3!
  • Keys
    • 1.Sc8!
      • threat
        • 2.Sd6#
      • 1...Kxb5
        • 2.Sd6#
      • 1...Qxc5
        • 2.Rxc5#
      • 1...Bxe5
        • 2.Qe2#
      • 1...Qa6
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(b);N_GUARD::R1(E)
    • Q(b);OGATE,XP(F)::R1(E),XQ(b)
    • Q(b);N_GUARD,XS(I)::R1(E)
    • B(c);::QAB(A)
    • B(c);XP(G)::QAB(A)
  • Tries
    • Try
      • S(H);
      • Threat
        • B(J)
      • Vars
        • Q(b);OGATE,XP(F)::R1(E),XQ(b)
        • Q(b);N_GUARD,XS(I)::R1(E)
        • B(c);XS(H)::QAB(A)
      • Refutation
        • Q(b);P_SPINQ(b),XP(B)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(d);P_PINS(H),S_FLIGHT,XR(E)::S(I)
      • Q(b);OGATE,XP(F)::R1(E),XQ(b)
      • B(c);XP(G)::QAB(A)
      • Q(b);N_GUARD::R1(E)
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