MESON Chess Problem Database

Problem Display
PID: 65036 (8/8/2rR1N1b/2p1p3/p5B1/3pk1Bb/3p2nN/r1Q2RK1 w - - 0 1)

Kazhuro, G

Loshinski, Lev Ilich

Magyar Sakkvilag, 1930

8/8/2rR1N1b/2p1p3/p5B1/3pk1Bb/3p2nN/r1Q2RK1

#2

8 + 11

5314 Grossmeister Shakhmatnoi Kompozitsii 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Qxc5#
    • 1...Rb6
      • 2.Qxc5#
    • 1...Bf4
      • 2.Bf2#
    • 1...Se1
      • 2.Rxe1#
    • 1...Sf4
      • 2.Bf2#
    • 1...Sh4
      • 2.Re1#
  • Tries
    • 1.Sd5+?
      • 1...Ke4
        • 2.Qc4#
      • 1...Kd4!
    • 1.Rd1?
      • threat
        • 2.Sf1#
        • 2.Qxd2#
      • 1...Rxc1
        • 2.Sf1#
      • 1...Bxg4
        • 2.Qxd2#
      • 1...dxc1Q
        • 2.Sf1#
        • 2.Rxd3#
      • 1...dxc1S
        • 2.Sf1#
      • 1...dxc1B
        • 2.Sf1#
        • 2.R1xd3#
        • 2.R6xd3#
      • 1...dxc1R
        • 2.Sf1#
        • 2.Rxd3#
      • 1...Ra2
        • 2.Sf1#
      • 1...Se1
        • 2.Rxe1#
        • 2.Qxd2#
      • 1...Sf4
        • 2.Bf2#
        • 2.Qxd2#
      • 1...Sh4
        • 2.Re1#
        • 2.Qxd2#
      • 1...Rxd6!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qxe5#
      • 1...Rxf1+
        • 2.Sxf1#
      • 1...d1Q
        • 2.Qf2#
      • 1...d1S
        • 2.Rf3#
      • 1...d1B
        • 2.Qf2#
      • 1...d1R
        • 2.Qf2#
      • 1...Bf4
        • 2.Bf2#
      • 1...e4
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 5
  • Sets
    • R(j);N_GUARD::QAB(A),XP(h)
    • B(k);SBLOCK::B(E)
    • S(c);N_GUARD::R(B),XS(c)
    • S(c);SBLOCK::B(E)
    • S(c);N_GUARD::R(B)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);N_SPINP(b),P-FLIGHT::QAR2(A)
      • Refutation
        • K(e);N_SPINP(b),S_FLIGHT
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);N_SPINP(b),P_PINR(B),XQ(A)::S(D)
        • B(f);XB(F)::QAB1(A),XP(b)
        • P(b);N_SPINP(b),XQ(A)::S(D)
        • R(a);::S(D)
      • Refutation
        • R(j);XR(G)
  • Actual
    • Q(A);N_PINP(b),P_SPINR(B)
    • Threat
      • QAR2(A),XP(i)
    • Vars
      • R(a);CHECK,XR(B)::S(D),XR(a)
      • P(b);OGATE::QAB1(A)
      • P(b);N_PINR(B)::R1(B)
      • P(b);N_PINR(B),OGATE::QAB1(A)
      • B(k);SBLOCK::B(E)
      • P(i);SBLOCK::S(H)
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