MESON Chess Problem Database

Problem Display
PID: 196858 (n2nB3/Kp2Bp2/1p1P1p2/p1kP1R2/R3p3/8/3P4/8 w - - 0 1)

Merenyi, Lajos

Magyar Sakkvilag, 1919

n2nB3/Kp2Bp2/1p1P1p2/p1kP1R2/R3p3/8/3P4/8

#2

8 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.dxc7#
    • 1...Sc6+
      • 2.dxc6#
    • 1...Se6
      • 2.dxe6#
    • 1...e3
      • 2.d4#
    • 1...b5
      • 2.d7#
  • Tries
    • 1.Kxa8?
      • 1...Sc6
        • 2.dxc6#
      • 1...Se6
        • 2.dxe6#
      • 1...e3
        • 2.d4#
      • 1...b5!
    • 1.Kb8?
      • 1...Sc6+
        • 2.dxc6#
      • 1...Sc7
        • 2.dxc7#
      • 1...Se6
        • 2.dxe6#
      • 1...e3
        • 2.d4#
      • 1...b5!
    • 1.Bd7?
      • 1...Sc6+
        • 2.dxc6#
      • 1...Sc7
        • 2.dxc7#
      • 1...Se6
        • 2.dxe6#
      • 1...e3
        • 2.d4#
      • 1...b5!
    • 1.Rxe4?
      • 1...Sc6+
        • 2.dxc6#
      • 1...Sc7
        • 2.dxc7#
      • 1...Se6
        • 2.dxe6#
      • 1...b5
        • 2.d7#
      • 1...a4!
    • 1.d3?
      • threat
        • 2.Rc4#
        • 2.d4#
      • 1...Sc6+
        • 2.dxc6#
      • 1...Se6
        • 2.Rc4#
        • 2.dxe6#
      • 1...b5
        • 2.d4#
        • 2.d7#
      • 1...exd3!
  • Keys
    • 1.Bf8!
      • 1...Sc6+
        • 2.dxc6#
      • 1...Sc7
        • 2.dxc7#
      • 1...Se6
        • 2.dxe6#
      • 1...e3
        • 2.d4#
      • 1...b5
        • 2.d7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(h);OGATE::B(G)+P(E),XS(h)
    • S(i);CHECK,OGATE::R(D)+P(C),XS(i)
    • S(i);OGATE::R(D)+P(C),XS(i)
    • P(a);N_GUARD::P(A)
    • P(d);SBLOCK::B(G)+P(E)
  • Tries
    • Try
      • K(F);P-FLIGHT,XS(h)
      • Vars
        • S(i);OGATE::R(D)+P(C),XS(i)
        • P(a);N_GUARD::P(A)
      • Refutation
        • P(d);
    • Try
      • K(F);S_FLIGHT
      • Vars
        • S(i);CHECK,OGATE::R(D)+P(C),XS(i)
        • S(h);OGATE::B(G)+P(E),XS(h)
        • S(i);OGATE::R(D)+P(C),XS(i)
        • P(a);N_GUARD::P(A)
      • Refutation
        • P(d);
    • Try
      • B(H);
      • Vars
        • S(i);CHECK,OGATE::R(D)+P(C),XS(i)
        • S(h);OGATE::B(G)+P(E),XS(h)
        • S(i);OGATE::R(D)+P(C),XS(i)
        • P(a);N_GUARD::P(A)
      • Refutation
        • P(d);
    • Try
      • R(B);XP(a)
      • Vars
        • S(i);CHECK,OGATE::R(D)+P(C),XS(i)
        • S(h);OGATE::B(G)+P(E),XS(h)
        • S(i);OGATE::R(D)+P(C),XS(i)
        • P(d);SBLOCK::B(G)+P(E)
      • Refutation
        • P(b);
    • Try
      • P(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(i);CHECK,OGATE::R(D)+P(C),XS(i)
      • Refutation
        • P(a);XP(A)
  • Actual
    • B(G);
    • Vars
      • S(i);CHECK,OGATE::R(D)+P(C),XS(i)
      • S(h);OGATE::B(G)+P(E),XS(h)
      • S(i);OGATE::R(D)+P(C),XS(i)
      • P(a);N_GUARD::P(A)
      • P(d);SBLOCK::B(G)+P(E)
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