MESON Chess Problem Database

Problem Display
PID: 222926 (2n4R/p1P1R1B1/Kp1k1n2/1Bb5/3pP3/5N2/1Q6/8 w - - 0 1)

Chocolous, Jiri

Wiener Hausfrauen-Zeitung, 1885

2n4R/p1P1R1B1/Kp1k1n2/1Bb5/3pP3/5N2/1Q6/8

#2

9 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Qxa3#
    • 1...Bb4
      • 2.Qxb4#
    • 1...d3
      • 2.Qe5#
      • 2.Qxf6#
  • Tries
    • 1.Bxf6?
      • threat
        • 2.Rd8#
        • 2.Qh2#
      • 1...Ba3
        • 2.Qxa3#
        • 2.Qxd4#
      • 1...Bb4
        • 2.Qxd4#
        • 2.Qxb4#
      • 1...Sxe7!
    • 1.Rd8+?
      • 1...Sd7
        • 2.Rdxd7#
      • 1...Kxe7!
    • 1.Qxd4+?
      • 1...Kxe7
        • 2.Qxf6#
      • 1...Sd5
        • 2.Qe5#
      • 1...Bxd4!
  • Keys
    • 1.Sg5!
      • 1...Kxe7
        • 2.Bf8#
      • 1...Sxe4
        • 2.Rd7#
      • 1...Sxe7
        • 2.Qh2#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Bb4
        • 2.Qxb4#
      • 1...Sd7
        • 2.Rxd7#
      • 1...Sg4
        • 2.Rd7#
      • 1...Sd5
        • 2.Rd7#
      • 1...Sh5
        • 2.Rd7#
      • 1...Sh7
        • 2.Rd7#
      • 1...Se8
        • 2.Rd7#
      • 1...Sg8
        • 2.Rd7#
      • 1...d3
        • 2.Qe5#
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATEB::QAB(A),XB(b)
  • Tries
    • Try
      • B(H);XS(e)
      • Threat
        • DUALS(2)
      • Refutation
        • S(g);XR(G)
    • Try
      • R(I);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::R1(I),XS(e)
      • Refutation
        • K(d);S_FLIGHT,XR(G)
    • Try
      • Q(A);CHECK,XP(a)
      • Vars
        • K(d);S_FLIGHT,XR(G)::QAB1(A),XS(e)
        • S(e);P_SPINS(e)::QAB1(A)
      • Refutation
        • B(b);XQ(A)
  • Actual
    • S(B);
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(G)::B(H)
      • S(e);N_GUARD,XP(C)::R1(G)
      • S(g);SBLOCK,XR(G)::QAB(A)
      • B(b);OGATEB::QAB(A),XB(b)
      • S(e);N_GUARD::R1(G),XS(e)
      • S(e);N_GUARD::R1(G)
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