MESON Chess Problem Database

Problem Display
PID: 57442 (3R3r/4B3/2p2N2/2RB4/K2kq3/1pp2p2/5nN1/1Q6 w - - 0 1)

Burger, Robert Eugene

1st Prize, Chess Life (unusual or unorthodox ideas Ty.), 1955-1956

3R3r/4B3/2p2N2/2RB4/K2kq3/1pp2p2/5nN1/1Q6

#2

8 + 8

14609 Mostly Three=Movers 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb1
      • 2.Bg8#
    • 1...Qc2
      • 2.Bg8#
    • 1...Qd3
      • 2.Bg8#
    • 1...Qg6
      • 2.Bg8#
    • 1...Qh7
      • 2.Bg8#
    • 1...Qe1
      • 2.Bg8#
    • 1...Qe2
      • 2.Bg8#
    • 1...Qe3
      • 2.Bg8#
    • 1...Qh4
      • 2.Bg8#
    • 1...Qe5
      • 2.Rc4#
    • 1...Rh1
      • 2.Bxe4#
    • 1...Rh2
      • 2.Bxe4#
    • 1...Rh3
      • 2.Bxe4#
    • 1...Rh4
      • 2.Bxe4#
    • 1...Rh6
      • 2.Bxe4#
    • 1...Rh7
      • 2.Bxe4#
    • 1...Sd1
      • 2.Qxe4#
    • 1...Sh1
      • 2.Qxe4#
    • 1...Sh3
      • 2.Qxe4#
    • 1...Sg4
      • 2.Qxe4#
  • Tries
    • 1.Bxc6+?
      • 1...Qd5
        • 2.Rdxd5#
      • 1...Rxd8!
    • 1.Qxb3?
      • threat
        • 2.Qxc3#
      • 1...Kd3+
        • 2.Bc4#
      • 1...Ke5+
        • 2.Bxe4#
      • 1...Qc2
        • 2.Bg8#
      • 1...Qd3
        • 2.Bg8#
      • 1...Qe1
        • 2.Bg8#
      • 1...Qe3
        • 2.Bg8#
      • 1...c2
        • 2.Qc3#
      • 1...Sd1!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qxc3#
      • 1...Kd3+
        • 2.Bxe4#
      • 1...Ke5+
        • 2.Bc4#
      • 1...Qxe1
        • 2.Bg8#
      • 1...Qc2
        • 2.Bg8#
        • 2.Qe3#
      • 1...Qd3
        • 2.Bg8#
      • 1...Qe3
        • 2.Bg8#
        • 2.Qxe3#
      • 1...Sd1
        • 2.Qxe4#
      • 1...c2
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 17
  • Sets
    • Q(f);N_GUARD,XQ(A)::R(H)+B(E)
    • Q(f);N_GUARD::R(H)+B(E)
    • Q(f);SBLOCK::R1(D)
    • R(h);N_GUARD::R(H)+B(E),XQ(f)
    • S(a);N_GUARD::QAR1(A),XQ(f)
  • Tries
    • Try
      • B(E);CHECK,XP(g)
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::R1(H),XQ(f)
      • Refutation
        • R(h);XR(H)
    • Try
      • Q(A);XP(b)
      • Threat
        • QAB1(A),XP(c)
      • Vars
        • K(e);CHECK,P-FLIGHT,P_SPINP(c)::R(H)+B(E),DCHECK
        • K(e);CHECK,S_FLIGHT::R(D)+B(E),XQ(f)
        • Q(f);N_GUARD,P_PINQ(A)::R(H)+B(E)
        • Q(f);N_GUARD,SBLOCK::R(H)+B(E)
        • Q(f);N_GUARD::R(H)+B(E)
        • P(c);::QAB1(A)
      • Refutation
        • S(a);
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XP(c)
    • Vars
      • K(e);CHECK,P-FLIGHT::R(H)+B(E),DCHECK,XQ(f)
      • K(e);CHECK,P_SPINQ(f),S_FLIGHT::R(D)+B(E)
      • Q(f);N_GUARD,XQ(A)::R(H)+B(E)
      • Q(f);N_GUARD,SBLOCK::R(H)+B(E)
      • S(a);N_GUARD::QAR1(A),XQ(f)
      • P(c);::QAB1(A)
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