MESON Chess Problem Database

Problem Display
PID: 198084 (8/n2Q4/5b2/1p3N1K/4kP1p/5p1N/2R5/2r1nR2 w - - 0 1)

Basisty, Mark Borisovich

Vasilenko, Anatoly Grigorovich

Zadachi i Etyudi, 2015

8/n2Q4/5b2/1p3N1K/4kP1p/5p1N/2R5/2r1nR2

#2

7 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Sg3+?
      • 1...Ke3
        • 2.Qd2#
      • 1...hxg3!
    • 1.Rd2?
      • threat
        • 2.Qd5#
      • 1...Rc5
        • 2.Rxe1#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Be5!
    • 1.Rc4+?
      • 1...Rxc4
        • 2.Rxe1#
      • 1...Bd4
        • 2.Rxd4#
      • 1...bxc4!
    • 1.Rc5?
      • threat
        • 2.Qd5#
      • 1...Rxc5
        • 2.Rxe1#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Be5
        • 2.Rxe5#
      • 1...Rd1!
  • Keys
    • 1.Rxf3!
      • threat
        • 2.Re3#
      • 1...Kxf3
        • 2.Qd5#
      • 1...Sxc2
        • 2.Qd3#
      • 1...Sxf3
        • 2.Re2#
      • 1...Bd4
        • 2.Sg5#
      • 1...Sg2
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(G)
      • Refutation
        • P(e);XS(E)
    • Try
      • R(B);
      • Threat
        • QAB1(G)
      • Vars
        • R(a);N_GUARD,P_PINS(E)::R(A),XS(b)
        • B(g);N_GUARD::R1(B),XB(g)
        • S(b);N_GUARD::QAB1(G),XS(b)
      • Refutation
        • B(g);
    • Try
      • R(B);CHECK
      • Vars
        • R(a);XR(B)::R(A),XS(b)
        • B(g);N_GUARD,P_SPINB(g)::R1(B),XB(g)
      • Refutation
        • P(f);XR(B)
    • Try
      • R(B);
      • Threat
        • QAB1(G)
      • Vars
        • R(a);N_GUARD,P_PINS(E),XR(B)::R(A),XS(b)
        • B(g);N_GUARD::QAR1(G),XB(g)
        • B(g);N_GUARD::R1(B),XB(g)
      • Refutation
        • R(a);
  • Actual
    • R(A);XP(c)
    • Threat
      • R1(A)
    • Vars
      • K(d);S_FLIGHT,XR(A)::QAB(G)
      • S(b);N_GUARD,XR(B)::QAB1(G)
      • S(b);SBLOCK,XR(A)::R(B)
      • B(g);N_GUARD::S(C)
      • S(b);N_GUARD::QAB1(G)
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