MESON Chess Problem Database

Problem Display
PID: 63480 (8/8/8/2BB4/8/2PPNN2/Q3pk1P/1K6 w - - 0 1)

Schumer, Jacob

Chess Amateur (The), 1909

8/8/8/2BB4/8/2PPNN2/Q3pk1P/1K6

#2

9 + 2

5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Sc2+?
      • 1...Kf1
        • 2.Sd2#
      • 1...Kg2!
    • 1.Sg2+?
      • 1...Kf1
        • 2.Sd2#
      • 1...Kxg2!
    • 1.Sg1?
      • 1...Ke1
        • 2.Qxe2#
      • 1...Kxg1!
  • Keys
    • 1.Bg8!
      • 1...Kxf3
        • 2.Qf7#

Anticipated by 175240(1902)

This anticipates 16392(1940)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK,N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::S(G)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::S(G)
      • Refutation
        • K(b);P-FLIGHT,XS(F)
    • Try
      • S(G);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR1(B),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT,XS(G)
  • Actual
    • B(I);
    • Vars
      • K(b);N_SPINP(a),OGATEB,P-FLIGHT,XS(G)::QAR(B)
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