MESON Chess Problem Database

Problem Display
PID: 63021 (1B2B3/3q2p1/2k4r/PNN4r/3bP3/2pQp2p/2P1n3/3K4 w - - 0 1)

Marshall, Burney Means

The Chess Review, 1937

1B2B3/3q2p1/2k4r/PNN4r/3bP3/2pQp2p/2P1n3/3K4

#2

9 + 10

5454 Near Snap 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc5
      • 2.Qxd7#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Qb5#
      • 1...Kxc5
        • 2.Qc4#
      • 1...Rxc5
        • 2.Qa6#
      • 1...Rxd6!
  • Keys
    • 1.Sa3!
      • threat
        • 2.Qb5#
      • 1...Kxc5
        • 2.Qc4#
      • 1...Rxc5
        • 2.Qa6#
      • 1...Bxc5
        • 2.Qxd7#
      • 1...Be5
        • 2.Qd5#
      • 1...Bf6
        • 2.Qd6#

Anticipated by 71717(1925)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(e);OGATE,P_PINQ(C),SBLOCK,XS(G)::QAB1(C),XQ(i)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(C)
      • Vars
        • K(g);N_SPINQ(i),OGATEB,P-FLIGHT,XS(G)::QAR1(C)
        • R(f);SBLOCK,XS(G)::QAR2(C)
      • Refutation
        • R(h);XS(F)
  • Actual
    • S(F);
    • Threat
      • QAB1(C)
    • Vars
      • K(g);N_SPINQ(i),OGATEB,P-FLIGHT,XS(G)::QAR1(C)
      • R(f);SBLOCK,XS(G)::QAR2(C)
      • B(e);OGATE,P_PINQ(C),SBLOCK,XS(G)::QAB1(C),XQ(i)
      • B(e);OGATE,P_PINQ(C)::QAB1(C)
      • B(e);OGATE,P_PINQ(C)::QAR1(C)
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