MESON Chess Problem Database

Problem Display
PID: 10378 (8/4Qp2/2P2rp1/P2k2P1/r2P4/8/P1N2B2/1KR2B2 w - - 0 1)

Morse, Christopher Jeremy

1st Prize, BCPS Ring Ty., 1964

8/4Qp2/2P2rp1/P2k2P1/r2P4/8/P1N2B2/1KR2B2

#2

11 + 5

1355 The Guardian 1964
3174 The Two-move Chess Problem Tradition and Development 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Sb4#
    • 1...Rxa2
      • 2.Sb4#
    • 1...Ra3
      • 2.Sb4#
    • 1...Rb4+
      • 2.Sxb4#
    • 1...Rxd4
      • 2.Se3#
    • 1...Rxa5
      • 2.Sb4#
    • 1...Rxc6
      • 2.Qe5#
  • Tries
    • 1.Qc5+?
      • 1...Ke6
        • 2.Re1#
        • 2.Qe5#
      • 1...Ke4!
    • 1.gxf6?
      • 1...Rb4+
        • 2.Sxb4#
      • 1...Kxc6
        • 2.Sb4#
      • 1...Rxa2
        • 2.Sb4#
      • 1...Rxd4
        • 2.Se3#
      • 1...Rxa5
        • 2.Sb4#
      • 1...Ra3
        • 2.Sb4#
      • 1...Rc4
        • 2.Bg2#
      • 1...g5!
  • Keys
    • 1.Bd3!
      • 1...Rb4+
        • 2.Sxb4#
      • 1...Kxc6
        • 2.Sb4#
      • 1...Rxa2
        • 2.Sb4#
      • 1...Rxd4
        • 2.Se3#
      • 1...Rxa5
        • 2.Sb4#
      • 1...Rxf2
        • 2.Qd7#
      • 1...Rxc6
        • 2.Qe5#
      • 1...Ra3
        • 2.Sb4#
      • 1...Rc4
        • 2.Be4#
      • 1...Rf3
        • 2.Qd7#
      • 1...Rf4
        • 2.Qd7#
      • 1...Rf5
        • 2.Qd7#
      • 1...Rd6
        • 2.Qe4#
      • 1...Re6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XP(J)::R(B)+S(E),DCHECK
    • R(a);N_GUARD,XP(D)::S(E)
    • R(a);N_GUARD::S(E)
    • R(a);CHECK,N_GUARD::S(E),XR(a)
    • R(a);SBLOCK,XP(G)::S(E)
    • R(a);N_GUARD,XP(H)::S(E)
    • R(c);SBLOCK,XP(J)::QAR1(K)
  • Tries
    • Try
      • Q(K);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(I);XR(c)
      • Vars
        • R(a);CHECK,N_GUARD::S(E),XR(a)
        • K(b);S_FLIGHT,XP(J)::R(B)+S(E),DCHECK
        • R(a);N_GUARD,XP(D)::S(E)
        • R(a);SBLOCK,XP(G)::S(E)
        • R(a);N_GUARD,XP(H)::S(E)
        • R(a);N_GUARD::S(E)
        • R(a);SBLOCK::B(C)
      • Refutation
        • P(d);
  • Actual
    • B(C);
    • Vars
      • R(a);CHECK,N_GUARD::S(E),XR(a)
      • K(b);S_FLIGHT,XP(J)::R(B)+S(E),DCHECK
      • R(a);N_GUARD,XP(D)::S(E)
      • R(a);SBLOCK,XP(G)::S(E)
      • R(a);N_GUARD,XP(H)::S(E)
      • R(c);N_GUARD,XB(F)::QAR2(K)
      • R(c);SBLOCK,XP(J)::QAR1(K)
      • R(a);N_GUARD::S(E)
      • R(a);SBLOCK::B(C)
      • R(c);N_GUARD::QAR2(K)
      • R(c);SBLOCK::QAB1(K)
      • R(c);SBLOCK::QAR1(K)
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