MESON Chess Problem Database

Problem Display
PID: 223431 (q6k/p1P1Pb2/QP2P3/2pB1NN1/3b2p1/7r/2K5/B3R2R w - - 0 1)

Anonymous

Mirror of American Sports, 1885

(First published on Sat Feb 28 1885)

q6k/p1P1Pb2/QP2P3/2pB1NN1/3b2p1/7r/2K5/B3R2R

#2

12 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bxd4+?
      • 1...Kg8
        • 2.exf7#
      • 1...cxd4!
  • Keys
    • 1.exf7!
      • 1...Rh2+
        • 2.Rxh2#
      • 1...Qxd5
        • 2.e8Q#
        • 2.e8R#
      • 1...Rxh1
        • 2.Rxh1#
      • 1...Bxa1
        • 2.Qxa1#
      • 1...axb6
        • 2.Qxa8#
      • 1...Qc6
        • 2.f8Q#
        • 2.f8R#
      • 1...Qb7
        • 2.e8Q#
        • 2.e8R#
        • 2.f8Q#
        • 2.f8R#
      • 1...Qb8
        • 2.cxb8Q#
        • 2.cxb8R#
      • 1...Qc8
        • 2.Qxc8#
      • 1...Qd8
        • 2.cxd8Q#
        • 2.cxd8R#
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Qe8
        • 2.fxe8Q#
        • 2.fxe8R#
      • 1...Qf8
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Qg8
        • 2.fxg8Q#
        • 2.fxg8R#
      • 1...Rh4
        • 2.Rxh4#
      • 1...Rh5
        • 2.Rxh5#
      • 1...Rh6
        • 2.Rxh6#
      • 1...Rh7
        • 2.Rxh7#
      • 1...Bb2
        • 2.Bxb2#
      • 1...Bc3
        • 2.Bxc3#
      • 1...Be5
        • 2.Bxe5#
      • 1...Bf6
        • 2.Bxf6#
      • 1...Bg7
        • 2.Bxg7#
      • 1...g3
        • 2.Rxh3#
      • 1...c4
        • 2.Bxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);CHECK,XB(b)
      • Vars
        • K(h);N_SPINR(a),P-FLIGHT::P(J),XB(f)
      • Refutation
        • P(d);XB(A)
  • Actual
    • P(J);XB(f)
    • Vars
      • R(a);CHECK,OGATEB::R(C),XR(a)
      • Q(g);N_GUARD,XB(E)::P=Q
      • R(a);N_SPINR(a),OGATE,XR(C)::R(B),XR(a)
      • B(b);N_SPINB(b),OGATE,XB(A)::QAB(H),XB(b)
      • P(e);OGATE,XP(I)::QAB1(H),XQ(g)
      • Q(g);N_GUARD::P=Q
      • Q(g);OGATE::PXQ(g)=Q
      • Q(g);N_GUARD::QAR(H),XQ(g)
      • R(a);OGATE::R(C),XR(a)
      • R(a);OGATE::R1(C),XR(a)
      • B(b);OGATEB::B(A),XB(b)
      • B(b);OGATE::B(A),XB(b)
      • P(c);N_GUARD::R(C),XR(a)
      • P(d);N_GUARD::B(A),XB(b)
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