MESON Chess Problem Database

Problem Display
PID: 183140 (8/6B1/rp5K/1pP1R3/qp1k2p1/2N5/1N1r1b2/1n4Q1 w - - 0 1)

Jewetsky, Feodor Orestovich

Western Daily Mercury, 1907

8/6B1/rp5K/1pP1R3/qp1k2p1/2N5/1N1r1b2/1n4Q1

#2

7 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sxb5#
    • 1...Qc2
      • 2.Sxb5#
    • 1...Qb3
      • 2.Sxb5#
    • 1...Qa1
      • 2.Sxb5#
    • 1...Qa2
      • 2.Sxb5#
    • 1...Qa3
      • 2.Sxb5#
    • 1...Rd1
      • 2.Se2#
    • 1...Re2
      • 2.Sxe2#
    • 1...Rd3
      • 2.Se2#
    • 1...Be3+
      • 2.Rg5#
      • 2.Qxe3#
    • 1...bxc3
      • 2.Qxg4#
    • 1...bxc5+
      • 2.Re6#
  • Keys
    • 1.Qd1!
      • threat
        • 2.Se2#
      • 1...Be3+
        • 2.Rg5#
      • 1...bxc5+
        • 2.Re6#
      • 1...Kxc3
        • 2.Re3#
      • 1...Qxd1
        • 2.Sxb5#
      • 1...Sxc3
        • 2.Qxd2#
      • 1...bxc3
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(d);N_GUARD::S(C),XP(h)
    • R(b);N_GUARD::S(C)
    • R(b);N_GUARD::S(C),XR(b)
    • P(e);SBLOCK,XS(C)::QAR(A),XP(g)
    • P(j);CHECK,SBLOCK,XP(D)::B(G)+R(E)
  • Actual
    • Q(A);N_PINB(c),P_PINR(b)
    • Threat
      • S(C)
    • Vars
      • B(c);CHECK,SBLOCK::B(G)+R(E)
      • P(j);CHECK,SBLOCK,XP(D)::B(G)+R(E)
      • K(f);N_SPINR(b),S_FLIGHT,XS(C)::B(G)+R(E),DCHECK
      • Q(d);N_GUARD,N_SPINR(b),XQ(A)::S(C),XP(h)
      • S(a);N_GUARD,XS(C)::QAR2(A),XR(b)
      • P(e);SBLOCK,XS(C)::QAR(A),XP(g)
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