MESON Chess Problem Database

Problem Display
PID: 214465 (6K1/8/8/2P2kBR/1NrP1Pr1/7Q/B3b3/4R3 w - - 0 1)

Teed, Frank Melville

New York Turf, Field and Farm, 1878

6K1/8/8/2P2kBR/1NrP1Pr1/7Q/B3b3/4R3

#2

10 + 4

160 Brooklyn Chess Chronicle 1883
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qd3#
    • 1...Ke6
      • 2.Qxg4#
    • 1...Bd1
      • 2.Qd3#
    • 1...Bd3
      • 2.Qxd3#
  • Tries
    • 1.Bb1+?
      • 1...Ke6
        • 2.Qxg4#
      • 1...Bd3
        • 2.Bxd3#
        • 2.Qxd3#
      • 1...Rc2!
  • Keys
    • 1.Rh8!
      • 1...Ke4
        • 2.Qd3#
      • 1...Ke6
        • 2.Qxg4#
      • 1...Kg6
        • 2.Qh7#
      • 1...Rxb4
        • 2.Qh7#
      • 1...Rxd4
        • 2.Qh7#
      • 1...Rxc5
        • 2.Qh7#
      • 1...Rc1
        • 2.Qh7#
      • 1...Rc2
        • 2.Qh7#
      • 1...Rc3
        • 2.Qh7#
      • 1...Bd1
        • 2.Qd3#
        • 2.Qh7#
      • 1...Bf1
        • 2.Qh7#
      • 1...Bd3
        • 2.Qxd3#
        • 2.Qh7#
      • 1...Bf3
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 2
  • Sets
    • K(d);N_SPINR(c),P_SPINB(a),S_FLIGHT::QAB1(C)
    • K(d);N_SPINR(c),P_SPINB(a),P_SPINR(b),S_FLIGHT::QAB(C),XR(c)
    • B(a);N_GUARD::QAB(C)
    • B(a);N_GUARD::QAB(C),XB(a)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(d);P_SPINB(a),S_FLIGHT::QAB(C),XR(c)
      • Refutation
        • R(b);N_SPINR(c),P_SPINR(b)
  • Actual
    • R(I);
    • Vars
      • K(d);N_SPINR(c),P_SPINB(a),S_FLIGHT::QAB1(C)
      • K(d);N_SPINR(c),P_SPINB(a),P_SPINR(b),S_FLIGHT::QAB(C),XR(c)
      • K(d);N_PINB(H),N_SPINR(c),S_FLIGHT::QAB1(C)
      • R(b);XS(D)::QAB(C)
      • R(b);XP(E)::QAB(C)
      • R(b);XP(G)::QAB(C)
      • R(b);::QAB(C)
      • B(a);::QAB(C)
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