MESON Chess Problem Database

Problem Display
PID: 189720 (2B5/2B5/2kP1p1n/5Pp1/3PK2p/N3P3/8/2n3bQ w - - 0 1)

Merenyi, Lajos

8th HM., Karolyvarosi Sahovski Klub, 1912

2B5/2B5/2kP1p1n/5Pp1/3PK2p/N3P3/8/2n3bQ

#2

9 + 7

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bf2
      • 2.Qxc1#
    • 1...Bh2
      • 2.Qxc1#
    • 1...Bxe3
      • 2.Kxe3#
    • 1...Sa2
      • 2.Kd3#
    • 1...Se2
      • 2.Kd3#
    • 1...Sb3
      • 2.Kd3#
    • 1...Sd3
      • 2.Kxd3#
    • 1...Sxf5
      • 2.Kxf5#
    • 1...g4
      • 2.Kf4#
  • Tries
    • 1.Qg2?
      • threat
        • 2.Qc2#
      • 1...Sa2
        • 2.Kd3#
      • 1...Se2
        • 2.Kd3#
      • 1...Sb3
        • 2.Kd3#
      • 1...Sd3
        • 2.Kxd3#
      • 1...Bf2!
  • Keys
    • 1.Kf3!
      • 1...g4+
        • 2.Kf4#
      • 1...Kd5
        • 2.Bb7#
      • 1...Bxe3
        • 2.Kxe3#
      • 1...Sxf5
        • 2.Kg4#
      • 1...Bf2
        • 2.Kxf2#
      • 1...Bh2
        • 2.Kf2#
      • 1...Sa2
        • 2.Ke2#
      • 1...Se2
        • 2.Kxe2#
      • 1...Sb3
        • 2.Ke2#
      • 1...Sd3
        • 2.Ke2#
      • 1...Sg4
        • 2.Kxg4#
      • 1...Sf7
        • 2.Kg4#
      • 1...Sg8
        • 2.Kg4#
      • 1...h3
        • 2.Kg3#

Anticipated by 4667(1886)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 7
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE::QAR(A),XS(a)
    • B(b);XP(C)::QAB(A)+K(E),XB(b)
    • S(a);::QAB(A)+K(E)
    • S(a);::QAB(A)+K(E),XS(a)
    • S(g);XP(F)::QAB(A)+K(E),XS(g)
    • P(d);::QAB(A)+K(E)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • S(a);::QAB(A)+K(E)
        • S(a);::QAB(A)+K(E),XS(a)
      • Refutation
        • B(b);
  • Actual
    • K(E);S_FLIGHT
    • Vars
      • P(d);CHECK::QAB(A)+K(E)
      • K(e);S_FLIGHT::B(I)
      • B(b);XP(C)::QAB(A)+K(E),XB(b)
      • S(g);XP(F)::QAB(A)+K(E)
      • B(b);::QAB(A)+K(E),XB(b)
      • B(b);::QAB(A)+K(E)
      • S(a);::QAB(A)+K(E)
      • S(a);::QAB(A)+K(E),XS(a)
      • S(g);::QAB(A)+K(E),XS(g)
      • S(g);::QAB(A)+K(E)
      • P(c);::QAB(A)+K(E)
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