MESON Chess Problem Database

Problem Display
PID: 109254 (8/8/2p1B3/n7/2P1kpb1/2b2N2/K1R2B2/7Q w - - 0 1)

Rockwell, Almon Ferdinand

Checkmate, 1902

8/8/2p1B3/n7/2P1kpb1/2b2N2/K1R2B2/7Q

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2+?
      • 1...Kd3
        • 2.Qe4#
      • 1...Ke5!
    • 1.Sg5+?
      • 1...Kd3
        • 2.Qe4#
      • 1...Ke5!
    • 1.Rxc3?
      • threat
        • 2.Qb1#
        • 2.Qe1#
      • 1...Bxe6
        • 2.Qb1#
      • 1...Sxc4
        • 2.Qb1#
      • 1...Bxf3!
    • 1.Qe1+?
      • 1...Kd3
        • 2.Rxc3#
        • 2.Qe2#
      • 1...Kxf3
        • 2.Qh1#
      • 1...Bxe1!
    • 1.Qh7+?
      • 1...Kxf3
        • 2.Qh1#
      • 1...Bf5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Rxc3#
      • 1...Kd3
        • 2.Rb2#
        • 2.Rd2#
      • 1...Kxf3
        • 2.Qh1#
      • 1...Bxf3
        • 2.Re2#
      • 1...Ba1
        • 2.Rc3#
      • 1...Be1
        • 2.Rc3#
      • 1...Bb2
        • 2.Rc3#
      • 1...Bd2
        • 2.Rc3#
      • 1...Bb4
        • 2.Rc3#
      • 1...Bd4
        • 2.Rc3#
      • 1...Be5
        • 2.Rc3#
      • 1...Bf6
        • 2.Rc3#
      • 1...Bg7
        • 2.Rc3#
      • 1...Bh8
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(d);P_PINP(F),XB(G)::QAB(A)
        • S(e);XP(F)::QAB(A)
      • Refutation
        • B(d);P_SPINB(d),XS(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • B(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • B(d);P_SPINB(d)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+R(C),XB(a)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • B(d);SBLOCK,XS(E)::QAB(A)+R(C),DCHECK
      • B(a);::QAB(A)+R(C)
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