MESON Chess Problem Database

Problem Display
PID: 222912 (Bb2RRbn/5q1N/3pQ1p1/8/4pkPB/p2r4/K1PP1p1N/7n w - - 0 1)

Trilling, Anton AC

Funkschach, 1926

Bb2RRbn/5q1N/3pQ1p1/8/4pkPB/p2r4/K1PP1p1N/7n

#2

11 + 12

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Rxf6#
    • 1...Rb3
      • 2.Qxe4#
    • 1...Rg3
      • 2.Bg5#
    • 1...Rd5
      • 2.Qxe4#
    • 1...Sg3
      • 2.Bg5#
  • Tries
    • 1.Rxf7+?
      • 1...Sxf7
        • 2.Qxe4#
        • 2.Qf6#
      • 1...Bxf7!
    • 1.Qxf7+?
      • 1...Sxf7
        • 2.Rxe4#
      • 1...Bxf7+!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Rxe4#
      • 1...Re3
        • 2.dxe3#
      • 1...Rd4
        • 2.Bg5#
      • 1...Rd5
        • 2.Qe3#
      • 1...Sg3
        • 2.Bg5#
      • 1...e3
        • 2.Re4#
      • 1...d5
        • 2.Qxb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • Q(i);OGATE::R(K),XQ(i)
    • R(d);N_PINQ(G)::QAR1(G),XP(e)
    • R(d);SBLOCK::B(F)
    • S(a);SBLOCK::B(F)
  • Tries
    • Try
      • R(K);CHECK,N_SPINQ(G),XQ(i)
      • Refutation
        • B(k);P_PINQ(G),XR(K)
    • Try
      • Q(G);CHECK,XQ(i)
      • Vars
        • S(l);P_SPINS(l),XQ(G)::R1(J),XP(e)
      • Refutation
        • B(k);CHECK,P_SPINB(k),XQ(G)
  • Actual
    • Q(G);
    • Threat
      • R1(J),XP(e)
    • Vars
      • R(d);OGATE::P(C),XR(d)
      • R(d);::B(F)
      • R(d);N_PINQ(G)::QAB1(G)
      • S(a);SBLOCK::B(F)
      • P(e);::R1(J)
      • P(g);N_PINQ(G)::QAB(G),XB(j)
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